Kolarević, Nevenka

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  • Kolarević, Nevenka (15)
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Author's Bibliography

Slobodne vibracije rotaciono-simetričnih sistema primenom metode dinamičke krutosti

Kolarević, Nevenka; Nefovska-Danilović, Marija

(Univerzitet u Beogradu Građevinski fakultet Beograd, 2022)

TY  - CONF
AU  - Kolarević, Nevenka
AU  - Nefovska-Danilović, Marija
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2768
AB  - U ovom radu primenjena je metoda dinamičke krutosti za analizu slobodnih vibracija sistema koji se sastoji od kružne cilindrične ljuske i kružnih i/ili prstenastih ploča. Pri formulaciji dinamičkih matrica krutosti korišćena je Flügge-ove teorija ljuski, kao i Kirchoff-ova teorija tankih ploča. Na osnovu razvijenog programa u Matlab okruženju, urađeno je nekoliko numeričkih primera. Rezultati za sopstvene frekvencije dobijeni primenom metode dinamičke krutosti upoređeni su sa rezultatima dobijenim pomoću komercijalnog programa Abaqus zasnovanog na metodi konačnih elemenata.
AB  - In this paper, the dynamic stiffness method is used for the free vibration analysis of assemblies built up of circular cylindrical shells and circular and/or annular plates. Flügge's shell theory as well as Kirchoff's theory of thin plates were used in the formulation of dynamic stiffness matrices. Based on the Matlab code, developed for this particular purpose, several numerical examples were presented. The results for natural frequencies obtained using the dynamic stiffness method are compared with the results obtained using the commercial finite element method - based software Abaqus.
PB  - Univerzitet u Beogradu Građevinski fakultet Beograd
PB  - Društvo građevinskih konstruktera Srbije
C3  - 16th Congress hosted by Association of Structural Engineers of Serbia, 2022
T1  - Slobodne vibracije rotaciono-simetričnih sistema primenom metode dinamičke krutosti
T1  - Free vibration study of axisymmetric assemblies using dynamic stiffness method
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2768
ER  - 
@conference{
author = "Kolarević, Nevenka and Nefovska-Danilović, Marija",
year = "2022",
abstract = "U ovom radu primenjena je metoda dinamičke krutosti za analizu slobodnih vibracija sistema koji se sastoji od kružne cilindrične ljuske i kružnih i/ili prstenastih ploča. Pri formulaciji dinamičkih matrica krutosti korišćena je Flügge-ove teorija ljuski, kao i Kirchoff-ova teorija tankih ploča. Na osnovu razvijenog programa u Matlab okruženju, urađeno je nekoliko numeričkih primera. Rezultati za sopstvene frekvencije dobijeni primenom metode dinamičke krutosti upoređeni su sa rezultatima dobijenim pomoću komercijalnog programa Abaqus zasnovanog na metodi konačnih elemenata., In this paper, the dynamic stiffness method is used for the free vibration analysis of assemblies built up of circular cylindrical shells and circular and/or annular plates. Flügge's shell theory as well as Kirchoff's theory of thin plates were used in the formulation of dynamic stiffness matrices. Based on the Matlab code, developed for this particular purpose, several numerical examples were presented. The results for natural frequencies obtained using the dynamic stiffness method are compared with the results obtained using the commercial finite element method - based software Abaqus.",
publisher = "Univerzitet u Beogradu Građevinski fakultet Beograd, Društvo građevinskih konstruktera Srbije",
journal = "16th Congress hosted by Association of Structural Engineers of Serbia, 2022",
title = "Slobodne vibracije rotaciono-simetričnih sistema primenom metode dinamičke krutosti, Free vibration study of axisymmetric assemblies using dynamic stiffness method",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2768"
}
Kolarević, N.,& Nefovska-Danilović, M.. (2022). Slobodne vibracije rotaciono-simetričnih sistema primenom metode dinamičke krutosti. in 16th Congress hosted by Association of Structural Engineers of Serbia, 2022
Univerzitet u Beogradu Građevinski fakultet Beograd..
https://hdl.handle.net/21.15107/rcub_grafar_2768
Kolarević N, Nefovska-Danilović M. Slobodne vibracije rotaciono-simetričnih sistema primenom metode dinamičke krutosti. in 16th Congress hosted by Association of Structural Engineers of Serbia, 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_grafar_2768 .
Kolarević, Nevenka, Nefovska-Danilović, Marija, "Slobodne vibracije rotaciono-simetričnih sistema primenom metode dinamičke krutosti" in 16th Congress hosted by Association of Structural Engineers of Serbia, 2022 (2022),
https://hdl.handle.net/21.15107/rcub_grafar_2768 .

Dynamic stiffness – based free vibration study of open circular cylindrical shells

Kolarević, Nevenka; Nefovska-Danilović, Marija

(Elsevier, 2020)

TY  - JOUR
AU  - Kolarević, Nevenka
AU  - Nefovska-Danilović, Marija
PY  - 2020
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2054
AB  - In this paper, the dynamic stiffness method has been applied in the free vibration analysis of open circular cylindrical shells based on Flügge thin shell theory. The dynamic stiffness matrix for a completely free open cylindrical shell element has been derived and coded in MATLAB to compute the natural frequencies and mode shapes. The results of the numerical study have been compared with the results from the finite element analysis, as well as with the results from the literature. After a detailed convergence study, considering the number of terms in the proposed solution, applied boundary conditions and geometry, limitations and recommendations for application of the proposed method have been given.
PB  - Elsevier
T2  - Journal of Sound and Vibration
T1  - Dynamic stiffness – based free vibration study of open circular cylindrical shells
VL  - 486
DO  - 10.1016/j.jsv.2020.115600
ER  - 
@article{
author = "Kolarević, Nevenka and Nefovska-Danilović, Marija",
year = "2020",
abstract = "In this paper, the dynamic stiffness method has been applied in the free vibration analysis of open circular cylindrical shells based on Flügge thin shell theory. The dynamic stiffness matrix for a completely free open cylindrical shell element has been derived and coded in MATLAB to compute the natural frequencies and mode shapes. The results of the numerical study have been compared with the results from the finite element analysis, as well as with the results from the literature. After a detailed convergence study, considering the number of terms in the proposed solution, applied boundary conditions and geometry, limitations and recommendations for application of the proposed method have been given.",
publisher = "Elsevier",
journal = "Journal of Sound and Vibration",
title = "Dynamic stiffness – based free vibration study of open circular cylindrical shells",
volume = "486",
doi = "10.1016/j.jsv.2020.115600"
}
Kolarević, N.,& Nefovska-Danilović, M.. (2020). Dynamic stiffness – based free vibration study of open circular cylindrical shells. in Journal of Sound and Vibration
Elsevier., 486.
https://doi.org/10.1016/j.jsv.2020.115600
Kolarević N, Nefovska-Danilović M. Dynamic stiffness – based free vibration study of open circular cylindrical shells. in Journal of Sound and Vibration. 2020;486.
doi:10.1016/j.jsv.2020.115600 .
Kolarević, Nevenka, Nefovska-Danilović, Marija, "Dynamic stiffness – based free vibration study of open circular cylindrical shells" in Journal of Sound and Vibration, 486 (2020),
https://doi.org/10.1016/j.jsv.2020.115600 . .
10
2
10

Application of dynamic stiffness method in numerical free vibration analysis of stiffened plates

Damnjanović, Emilija; Marjanović, Miroslav; Nefovska-Danilović, Marija; Jočković, Miloš; Kolarević, Nevenka

(Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd, 2017)

TY  - JOUR
AU  - Damnjanović, Emilija
AU  - Marjanović, Miroslav
AU  - Nefovska-Danilović, Marija
AU  - Jočković, Miloš
AU  - Kolarević, Nevenka
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/892
AB  - The free vibration analysis of stiffened plate assemblies has been performed in this paper by using the dynamic stiffness method. Rectangular Mindlin plate dynamic stiffness element has been formulated. Using the rotation matrices, dynamic stiffness matrices of single plates have been derived in global coordinate system. The global dynamic stiffness matrix of plate assembly has been derived by using similar assembly procedure as in the finite element method. The natural frequencies of stiffened plate assemblies with different boundary conditions have been computed and validated against the results obtained by using the commercial software package Abaqus. High accuracy of the results has been demonstrated.
AB  - U okviru ovog rada, analizirane su slobodne vibracije ploča sa ukrućenjima, primenom metode dinamičke krutosti. Formulisan je pravougaoni element Mindlin-ove ploče, zasnovan na metodi dinamičke krutosti. Primenom matrica rotacije, formirane su dinamičke matrice krutosti pojedinačnih ploča u globalnom koordinatnom sistemu. Korišćenjem sličnog postupka kao u metodi konačnih elemenata, izvedena je globalna dinamička matrica krutosti sistema ploča. Određene su sopstvene frekvencije ploča sa ukrućenjima za različite konturne uslove i upoređene sa vrednostima dobijenim u komercijalnom programskom paketu Abaqus. Dobijeni su rezultati visoke tačnosti.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Application of dynamic stiffness method in numerical free vibration analysis of stiffened plates
T1  - Primena metode dinamičke krutosti u numeričkoj analizi slobodnih vibracija ploča sa ukrućenjima
EP  - 32
IS  - 2
SP  - 21
VL  - 60
DO  - 10.5937/grmk1702021D
ER  - 
@article{
author = "Damnjanović, Emilija and Marjanović, Miroslav and Nefovska-Danilović, Marija and Jočković, Miloš and Kolarević, Nevenka",
year = "2017",
abstract = "The free vibration analysis of stiffened plate assemblies has been performed in this paper by using the dynamic stiffness method. Rectangular Mindlin plate dynamic stiffness element has been formulated. Using the rotation matrices, dynamic stiffness matrices of single plates have been derived in global coordinate system. The global dynamic stiffness matrix of plate assembly has been derived by using similar assembly procedure as in the finite element method. The natural frequencies of stiffened plate assemblies with different boundary conditions have been computed and validated against the results obtained by using the commercial software package Abaqus. High accuracy of the results has been demonstrated., U okviru ovog rada, analizirane su slobodne vibracije ploča sa ukrućenjima, primenom metode dinamičke krutosti. Formulisan je pravougaoni element Mindlin-ove ploče, zasnovan na metodi dinamičke krutosti. Primenom matrica rotacije, formirane su dinamičke matrice krutosti pojedinačnih ploča u globalnom koordinatnom sistemu. Korišćenjem sličnog postupka kao u metodi konačnih elemenata, izvedena je globalna dinamička matrica krutosti sistema ploča. Određene su sopstvene frekvencije ploča sa ukrućenjima za različite konturne uslove i upoređene sa vrednostima dobijenim u komercijalnom programskom paketu Abaqus. Dobijeni su rezultati visoke tačnosti.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Application of dynamic stiffness method in numerical free vibration analysis of stiffened plates, Primena metode dinamičke krutosti u numeričkoj analizi slobodnih vibracija ploča sa ukrućenjima",
pages = "32-21",
number = "2",
volume = "60",
doi = "10.5937/grmk1702021D"
}
Damnjanović, E., Marjanović, M., Nefovska-Danilović, M., Jočković, M.,& Kolarević, N.. (2017). Application of dynamic stiffness method in numerical free vibration analysis of stiffened plates. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 60(2), 21-32.
https://doi.org/10.5937/grmk1702021D
Damnjanović E, Marjanović M, Nefovska-Danilović M, Jočković M, Kolarević N. Application of dynamic stiffness method in numerical free vibration analysis of stiffened plates. in Građevinski materijali i konstrukcije. 2017;60(2):21-32.
doi:10.5937/grmk1702021D .
Damnjanović, Emilija, Marjanović, Miroslav, Nefovska-Danilović, Marija, Jočković, Miloš, Kolarević, Nevenka, "Application of dynamic stiffness method in numerical free vibration analysis of stiffened plates" in Građevinski materijali i konstrukcije, 60, no. 2 (2017):21-32,
https://doi.org/10.5937/grmk1702021D . .
3
1

Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part I: Theory

Nefovska-Danilović, Marija; Kolarević, Nevenka; Marjanović, Miroslav; Petronijević, Mira

(Elsevier Ltd, 2017)

TY  - JOUR
AU  - Nefovska-Danilović, Marija
AU  - Kolarević, Nevenka
AU  - Marjanović, Miroslav
AU  - Petronijević, Mira
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/883
AB  - A procedure for developing the dynamic stiffness matrix of a completely free laminated composite plate based on the first-order (FSDT) and higher-order shear deformation theory (HSDT) is presented. The proposed method allows the computational analysis of free transverse vibrations of the individual rectangular laminated composite plates, as well as the composite plate assemblies, without any restrictions regarding the boundary conditions or frequency limitations. The general solution of the governing differential equations of the HSDT and FSDT is established using the superposition method. Continuous boundary conditions are discretized by using the projection method. The dynamic stiffness matrices of plate elements are then formulated from the assembly of the four dynamic stiffness matrices (four symmetry contributions). The validation of the theory and its application are provided in the Part II of this two-part paper.
PB  - Elsevier Ltd
T2  - Composite Structures
T1  - Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part I: Theory
EP  - 744
SP  - 728
VL  - 159
DO  - 10.1016/j.compstruct.2016.09.022
ER  - 
@article{
author = "Nefovska-Danilović, Marija and Kolarević, Nevenka and Marjanović, Miroslav and Petronijević, Mira",
year = "2017",
abstract = "A procedure for developing the dynamic stiffness matrix of a completely free laminated composite plate based on the first-order (FSDT) and higher-order shear deformation theory (HSDT) is presented. The proposed method allows the computational analysis of free transverse vibrations of the individual rectangular laminated composite plates, as well as the composite plate assemblies, without any restrictions regarding the boundary conditions or frequency limitations. The general solution of the governing differential equations of the HSDT and FSDT is established using the superposition method. Continuous boundary conditions are discretized by using the projection method. The dynamic stiffness matrices of plate elements are then formulated from the assembly of the four dynamic stiffness matrices (four symmetry contributions). The validation of the theory and its application are provided in the Part II of this two-part paper.",
publisher = "Elsevier Ltd",
journal = "Composite Structures",
title = "Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part I: Theory",
pages = "744-728",
volume = "159",
doi = "10.1016/j.compstruct.2016.09.022"
}
Nefovska-Danilović, M., Kolarević, N., Marjanović, M.,& Petronijević, M.. (2017). Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part I: Theory. in Composite Structures
Elsevier Ltd., 159, 728-744.
https://doi.org/10.1016/j.compstruct.2016.09.022
Nefovska-Danilović M, Kolarević N, Marjanović M, Petronijević M. Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part I: Theory. in Composite Structures. 2017;159:728-744.
doi:10.1016/j.compstruct.2016.09.022 .
Nefovska-Danilović, Marija, Kolarević, Nevenka, Marjanović, Miroslav, Petronijević, Mira, "Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part I: Theory" in Composite Structures, 159 (2017):728-744,
https://doi.org/10.1016/j.compstruct.2016.09.022 . .
21
12
27

Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part II: Numerical examples

Marjanović, Miroslav; Kolarević, Nevenka; Nefovska-Danilović, Marija; Petronijević, Mira

(Elsevier Ltd, 2017)

TY  - JOUR
AU  - Marjanović, Miroslav
AU  - Kolarević, Nevenka
AU  - Nefovska-Danilović, Marija
AU  - Petronijević, Mira
PY  - 2017
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/876
AB  - The dynamic stiffness elements based on the HSDT and FSDT (and the corresponding dynamic stiffness matrices of a laminated composite plate) have been implemented into the original MATLAB code, and a variety of numerical investigations is performed in this paper. The obtained results are validated against the exact and numerical solutions or the experimental data from the literature. In the absence of the analytical solutions, the numerical solutions obtained by using the Abaqus software are used. Excellent agreement is achieved against the existing exact solutions. After the detail convergence study considering both low and high modes of vibration, the effects of the plate side-to-thickness and orthotropy ratios, as well as the influence of boundary conditions, have been discussed by comparing the proposed models with the exact Levy-type solutions from the literature. A variety of new results for non-special boundary conditions is provided. Two additional examples of a completely free laminated composite plate undergoing free vibrations are provided and the results are validated against the experiment. Finally, the analyses considering the Z-and U-shaped composite plate assemblies with various boundary conditions are provided as a benchmark for future research.
PB  - Elsevier Ltd
T2  - Composite Structures
T1  - Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part II: Numerical examples
EP  - 196
SP  - 183
VL  - 159
DO  - 10.1016/j.compstruct.2016.09.023
ER  - 
@article{
author = "Marjanović, Miroslav and Kolarević, Nevenka and Nefovska-Danilović, Marija and Petronijević, Mira",
year = "2017",
abstract = "The dynamic stiffness elements based on the HSDT and FSDT (and the corresponding dynamic stiffness matrices of a laminated composite plate) have been implemented into the original MATLAB code, and a variety of numerical investigations is performed in this paper. The obtained results are validated against the exact and numerical solutions or the experimental data from the literature. In the absence of the analytical solutions, the numerical solutions obtained by using the Abaqus software are used. Excellent agreement is achieved against the existing exact solutions. After the detail convergence study considering both low and high modes of vibration, the effects of the plate side-to-thickness and orthotropy ratios, as well as the influence of boundary conditions, have been discussed by comparing the proposed models with the exact Levy-type solutions from the literature. A variety of new results for non-special boundary conditions is provided. Two additional examples of a completely free laminated composite plate undergoing free vibrations are provided and the results are validated against the experiment. Finally, the analyses considering the Z-and U-shaped composite plate assemblies with various boundary conditions are provided as a benchmark for future research.",
publisher = "Elsevier Ltd",
journal = "Composite Structures",
title = "Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part II: Numerical examples",
pages = "196-183",
volume = "159",
doi = "10.1016/j.compstruct.2016.09.023"
}
Marjanović, M., Kolarević, N., Nefovska-Danilović, M.,& Petronijević, M.. (2017). Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part II: Numerical examples. in Composite Structures
Elsevier Ltd., 159, 183-196.
https://doi.org/10.1016/j.compstruct.2016.09.023
Marjanović M, Kolarević N, Nefovska-Danilović M, Petronijević M. Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part II: Numerical examples. in Composite Structures. 2017;159:183-196.
doi:10.1016/j.compstruct.2016.09.023 .
Marjanović, Miroslav, Kolarević, Nevenka, Nefovska-Danilović, Marija, Petronijević, Mira, "Shear deformable dynamic stiffness elements for a free vibration analysis of composite plate assemblies - Part II: Numerical examples" in Composite Structures, 159 (2017):183-196,
https://doi.org/10.1016/j.compstruct.2016.09.023 . .
12
7
11

Вибрације и избочавањe плоча и љуски применом методе динамичке крутости

Kolarević, Nevenka

(Универзитет у Београду, Грађевински факултет, 2016)

TY  - THES
AU  - Kolarević, Nevenka
PY  - 2016
UR  - http://eteze.bg.ac.rs/application/showtheses?thesesId=4926
UR  - https://fedorabg.bg.ac.rs/fedora/get/o:15424/bdef:Content/download
UR  - http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=513748370
UR  - http://nardus.mpn.gov.rs/123456789/8040
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1672
AB  - Метод динамичке крутости (МДК) представља алтернативу методуконачних елемената (МКЕ) у анализи вибрација и избочавањаконструкција. Основни елемент у МДК је континуални елемент, односноњегова матрица крутости, која је формулисана на основу тачног решењадиференцијалне једначине проблема, па је самим тим избегнута потребаза дискретизацијом домена. Да би МДК могао да нађе ширу примену,потребна је одговарајућа база континуалних елемената. У оквирудисертације су по први пут формулисани континуални елементи заанализу вибрација Mindlin-ове правоугаоне плоче и сегмента кружнецилиндричне љуске по Donnell-Mushtari-евој и Flügge-овој теорији. Зарешење проблема слободних вибрација коришћен је Gorman-ов методсуперпозиције, док је динамика матрица крутости формулисана помоћуметода пројекције. Такође, на основу решења у затвореном обликуформулисани су следећи континуални елементи, односно одговарајућематрице крутости, за анализу вибрација и избочавања: Maurice Lévy-евеплоче по Mindlin-овој теорији, кружне цилиндричне љуске и сегментакружне цилиндричне љуске са специјалним граничним условима поDonnell-Mushtari-евој и Flügge-овој теорији. Изведене матрице крутости суимплементиране у за ту сврху написани Matlab програм за анализувибрација и избочавања система плоча и љуски. Резултати многобројнихнумеричких примера су упоређени са доступним резултатима излитературе, као и резултатима МКЕ, чиме је извршена верификација ураду формулисаних континуалних елемената.
AB  - Dynamic stiffness method (DSM) is an alternative to the Finite element method(FEM) in the vibration and buckling analysis. The essential element in the DSMis a continuous element and the corresponding stiffness matrix. The stiffnessmatrix is formulated based on the exact solution of the governing equations.Consequently, the discretization of the domain is minimized. For a widerapplication of the DSM, a suitable base of the continuous elements is necessary.Within this thesis, the continuous elements and the corresponding dynamicstiffness matrices for vibration analysis of the Mindlin plate and segment ofcircular cylindrical shells based on the Donnell-Mushtari and Flügge theory areformulated for the first time. Gorman's method of superposition has been used forsolution of the free vibrations problem, while the dynamic stiffness matrix isformulated by using the Projection method. In addition, based on the closed-formsolutions of the of free vibration and buckling problem, the followingcontinuous elements are formulated: Maurice Lévy plate element based on theMindlin theory, circular cylindrical shell and segmented circular cylindricalshell with special boundary conditions element based on the Donnell-Mushtariand Flügge theory. The developed stiffness matrices are implemented in theMatlab program for the vibration and buckling analysis of plates and shellsassemblies. The results of numerous numerical examples are compared with theavailable results in the literature, as well as with the results obtained using theFEM , and, in such way, the formulated continuous elements are verified.
PB  - Универзитет у Београду, Грађевински факултет
T2  - Универзитет у Београду
T1  - Вибрације и избочавањe плоча и љуски применом методе динамичке крутости
UR  - https://hdl.handle.net/21.15107/rcub_nardus_8040
ER  - 
@phdthesis{
author = "Kolarević, Nevenka",
year = "2016",
abstract = "Метод динамичке крутости (МДК) представља алтернативу методуконачних елемената (МКЕ) у анализи вибрација и избочавањаконструкција. Основни елемент у МДК је континуални елемент, односноњегова матрица крутости, која је формулисана на основу тачног решењадиференцијалне једначине проблема, па је самим тим избегнута потребаза дискретизацијом домена. Да би МДК могао да нађе ширу примену,потребна је одговарајућа база континуалних елемената. У оквирудисертације су по први пут формулисани континуални елементи заанализу вибрација Mindlin-ове правоугаоне плоче и сегмента кружнецилиндричне љуске по Donnell-Mushtari-евој и Flügge-овој теорији. Зарешење проблема слободних вибрација коришћен је Gorman-ов методсуперпозиције, док је динамика матрица крутости формулисана помоћуметода пројекције. Такође, на основу решења у затвореном обликуформулисани су следећи континуални елементи, односно одговарајућематрице крутости, за анализу вибрација и избочавања: Maurice Lévy-евеплоче по Mindlin-овој теорији, кружне цилиндричне љуске и сегментакружне цилиндричне љуске са специјалним граничним условима поDonnell-Mushtari-евој и Flügge-овој теорији. Изведене матрице крутости суимплементиране у за ту сврху написани Matlab програм за анализувибрација и избочавања система плоча и љуски. Резултати многобројнихнумеричких примера су упоређени са доступним резултатима излитературе, као и резултатима МКЕ, чиме је извршена верификација ураду формулисаних континуалних елемената., Dynamic stiffness method (DSM) is an alternative to the Finite element method(FEM) in the vibration and buckling analysis. The essential element in the DSMis a continuous element and the corresponding stiffness matrix. The stiffnessmatrix is formulated based on the exact solution of the governing equations.Consequently, the discretization of the domain is minimized. For a widerapplication of the DSM, a suitable base of the continuous elements is necessary.Within this thesis, the continuous elements and the corresponding dynamicstiffness matrices for vibration analysis of the Mindlin plate and segment ofcircular cylindrical shells based on the Donnell-Mushtari and Flügge theory areformulated for the first time. Gorman's method of superposition has been used forsolution of the free vibrations problem, while the dynamic stiffness matrix isformulated by using the Projection method. In addition, based on the closed-formsolutions of the of free vibration and buckling problem, the followingcontinuous elements are formulated: Maurice Lévy plate element based on theMindlin theory, circular cylindrical shell and segmented circular cylindricalshell with special boundary conditions element based on the Donnell-Mushtariand Flügge theory. The developed stiffness matrices are implemented in theMatlab program for the vibration and buckling analysis of plates and shellsassemblies. The results of numerous numerical examples are compared with theavailable results in the literature, as well as with the results obtained using theFEM , and, in such way, the formulated continuous elements are verified.",
publisher = "Универзитет у Београду, Грађевински факултет",
journal = "Универзитет у Београду",
title = "Вибрације и избочавањe плоча и љуски применом методе динамичке крутости",
url = "https://hdl.handle.net/21.15107/rcub_nardus_8040"
}
Kolarević, N.. (2016). Вибрације и избочавањe плоча и љуски применом методе динамичке крутости. in Универзитет у Београду
Универзитет у Београду, Грађевински факултет..
https://hdl.handle.net/21.15107/rcub_nardus_8040
Kolarević N. Вибрације и избочавањe плоча и љуски применом методе динамичке крутости. in Универзитет у Београду. 2016;.
https://hdl.handle.net/21.15107/rcub_nardus_8040 .
Kolarević, Nevenka, "Вибрације и избочавањe плоча и љуски применом методе динамичке крутости" in Универзитет у Београду (2016),
https://hdl.handle.net/21.15107/rcub_nardus_8040 .

Dynamic stiffness elements for free vibration analysis of stiffened plates

Damnjanović, Emilija; Nefovska-Danilović, Marija; Jočković, Miloš; Marjanović, Miroslav; Kolarević, Nevenka

(Društvo građevinskih konstruktera Srbije, Beograd, 2016)

TY  - CONF
AU  - Damnjanović, Emilija
AU  - Nefovska-Danilović, Marija
AU  - Jočković, Miloš
AU  - Marjanović, Miroslav
AU  - Kolarević, Nevenka
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1408
AB  - The free vibration analysis of stiffened plate assemblies is presented in this paper by using the dynamic stiffness method. The transformed dynamic stiffness matrix of completely free rectangular Mindlin plate is derived by using the transformation matrix. In addition, the global dynamic stiffness matrix of plate assembly is derived by using similar assembly procedure as in the finite element method. The natural frequencies of stiffened plate assemblies with arbitrary boundary conditions are computed and validated against the results obtained by using the finite element software Abaqus. High accuracy of the results is demonstrated.
AB  - U okviru ovog rada analizirane su slobodne vibracije ploča sa ukrućenjima primenom metode dinamičke krutosti. Razvijena je transformisana dinamička matrica krutosti potpuno slobodne pravougaone Mindlin-ove ploče korišćenjem matrice transformacije. Takođe, izvedena je globalna dinamička matrica krutosti sistema ploča koristeći sličan postupak kao u metodi konačnih elemenata. Određene su sopstvene frekvencije ploča sa ukrućenjima za različite konturne uslove i upoređene sa vrednostima dobijenim po metodi konačnih elemenata primenom programskog paketa Abaqus. Dobijeni su rezultati visoke tačnosti.
PB  - Društvo građevinskih konstruktera Srbije, Beograd
C3  - Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor
T1  - Dynamic stiffness elements for free vibration analysis of stiffened plates
T1  - Slobodne vibracije ploča sa ukrućenjima primenom metode dinamičke krutosti
EP  - 566
SP  - 557
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1408
ER  - 
@conference{
author = "Damnjanović, Emilija and Nefovska-Danilović, Marija and Jočković, Miloš and Marjanović, Miroslav and Kolarević, Nevenka",
year = "2016",
abstract = "The free vibration analysis of stiffened plate assemblies is presented in this paper by using the dynamic stiffness method. The transformed dynamic stiffness matrix of completely free rectangular Mindlin plate is derived by using the transformation matrix. In addition, the global dynamic stiffness matrix of plate assembly is derived by using similar assembly procedure as in the finite element method. The natural frequencies of stiffened plate assemblies with arbitrary boundary conditions are computed and validated against the results obtained by using the finite element software Abaqus. High accuracy of the results is demonstrated., U okviru ovog rada analizirane su slobodne vibracije ploča sa ukrućenjima primenom metode dinamičke krutosti. Razvijena je transformisana dinamička matrica krutosti potpuno slobodne pravougaone Mindlin-ove ploče korišćenjem matrice transformacije. Takođe, izvedena je globalna dinamička matrica krutosti sistema ploča koristeći sličan postupak kao u metodi konačnih elemenata. Određene su sopstvene frekvencije ploča sa ukrućenjima za različite konturne uslove i upoređene sa vrednostima dobijenim po metodi konačnih elemenata primenom programskog paketa Abaqus. Dobijeni su rezultati visoke tačnosti.",
publisher = "Društvo građevinskih konstruktera Srbije, Beograd",
journal = "Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor",
title = "Dynamic stiffness elements for free vibration analysis of stiffened plates, Slobodne vibracije ploča sa ukrućenjima primenom metode dinamičke krutosti",
pages = "566-557",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1408"
}
Damnjanović, E., Nefovska-Danilović, M., Jočković, M., Marjanović, M.,& Kolarević, N.. (2016). Dynamic stiffness elements for free vibration analysis of stiffened plates. in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor
Društvo građevinskih konstruktera Srbije, Beograd., 557-566.
https://hdl.handle.net/21.15107/rcub_grafar_1408
Damnjanović E, Nefovska-Danilović M, Jočković M, Marjanović M, Kolarević N. Dynamic stiffness elements for free vibration analysis of stiffened plates. in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor. 2016;:557-566.
https://hdl.handle.net/21.15107/rcub_grafar_1408 .
Damnjanović, Emilija, Nefovska-Danilović, Marija, Jočković, Miloš, Marjanović, Miroslav, Kolarević, Nevenka, "Dynamic stiffness elements for free vibration analysis of stiffened plates" in Zbornik radova / Društvо građevinskih konstruktera Srbije, Simpozijum 2016, 15-17. septembar, Zlatibor (2016):557-566,
https://hdl.handle.net/21.15107/rcub_grafar_1408 .

Shear deformable dynamic stiffness elements for free vibration analysis of rectangular isotropic multilayer plates with arbitrary boundary conditions

Marjanović, Miroslav; Kolarević, Nevenka; Nefovska-Danilović, Marija; Petronijević, Mira

(Građevinski fakultet Subotica, Subotica, 2016)

TY  - CONF
AU  - Marjanović, Miroslav
AU  - Kolarević, Nevenka
AU  - Nefovska-Danilović, Marija
AU  - Petronijević, Mira
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1404
AB  - In this paper, two shear deformable dynamic stiffness elements for the free vibration analysis of rectangular, transversely isotropic, single- and multi-layer plates having arbitrary boundary conditions are presented. Dynamic stifness matrices are developed for the Reddy’s higher-order shear deformation theory (HSDT) and the Mindlin-Reissner’s first-order shear deformation theory (FSDT). The dynamic stiffness matrices contain both the stiffness and mass properties of the plate and can be assembled similarly as in the conventional finite element method. The influence of faceto-core thickness ratio and face-to-core module ratio of sandwich plate, as well as the influence of the shear deformation on the free vibration characteristics of sandwich plates have been analysed. The results obtained by proposed HSDT and FSDT dynamic stiffness element are validated against the results obtained using the conventional finite element analysis (ABAQUS), as well as the results obtained by 4-node layered rectangular finite element. The proposed model allows accurate prediction of free vibration response of rectangular layered plate assemblies with arbitrary boundary conditions.
PB  - Građevinski fakultet Subotica, Subotica
C3  - Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016
T1  - Shear deformable dynamic stiffness elements for free vibration analysis of rectangular isotropic multilayer plates with arbitrary boundary conditions
T1  - Granična čvrstoća pritisnutih podužno ukrućenih pločastih nosača
EP  - 298
SP  - 279
VL  - 32
DO  - 10.14415/konferencijaGFS2016.027
ER  - 
@conference{
author = "Marjanović, Miroslav and Kolarević, Nevenka and Nefovska-Danilović, Marija and Petronijević, Mira",
year = "2016",
abstract = "In this paper, two shear deformable dynamic stiffness elements for the free vibration analysis of rectangular, transversely isotropic, single- and multi-layer plates having arbitrary boundary conditions are presented. Dynamic stifness matrices are developed for the Reddy’s higher-order shear deformation theory (HSDT) and the Mindlin-Reissner’s first-order shear deformation theory (FSDT). The dynamic stiffness matrices contain both the stiffness and mass properties of the plate and can be assembled similarly as in the conventional finite element method. The influence of faceto-core thickness ratio and face-to-core module ratio of sandwich plate, as well as the influence of the shear deformation on the free vibration characteristics of sandwich plates have been analysed. The results obtained by proposed HSDT and FSDT dynamic stiffness element are validated against the results obtained using the conventional finite element analysis (ABAQUS), as well as the results obtained by 4-node layered rectangular finite element. The proposed model allows accurate prediction of free vibration response of rectangular layered plate assemblies with arbitrary boundary conditions.",
publisher = "Građevinski fakultet Subotica, Subotica",
journal = "Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016",
title = "Shear deformable dynamic stiffness elements for free vibration analysis of rectangular isotropic multilayer plates with arbitrary boundary conditions, Granična čvrstoća pritisnutih podužno ukrućenih pločastih nosača",
pages = "298-279",
volume = "32",
doi = "10.14415/konferencijaGFS2016.027"
}
Marjanović, M., Kolarević, N., Nefovska-Danilović, M.,& Petronijević, M.. (2016). Shear deformable dynamic stiffness elements for free vibration analysis of rectangular isotropic multilayer plates with arbitrary boundary conditions. in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016
Građevinski fakultet Subotica, Subotica., 32, 279-298.
https://doi.org/10.14415/konferencijaGFS2016.027
Marjanović M, Kolarević N, Nefovska-Danilović M, Petronijević M. Shear deformable dynamic stiffness elements for free vibration analysis of rectangular isotropic multilayer plates with arbitrary boundary conditions. in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016. 2016;32:279-298.
doi:10.14415/konferencijaGFS2016.027 .
Marjanović, Miroslav, Kolarević, Nevenka, Nefovska-Danilović, Marija, Petronijević, Mira, "Shear deformable dynamic stiffness elements for free vibration analysis of rectangular isotropic multilayer plates with arbitrary boundary conditions" in Zbornik radova 4. međunarodne konferencije Savremena dostignuća u građevinarstvu 2016, 32 (2016):279-298,
https://doi.org/10.14415/konferencijaGFS2016.027 . .
1

Metoda dinamičke krutosti u dinamičkoj analizi ploča - deo 2: primena

Petronijević, Mira; Nefovska-Danilović, Marija; Kolarević, Nevenka; Marjanović, Miroslav; Jočković, Miloš

(Beograd: Univerzitet u Beogradu, Građevinski fakultet, 2016)

TY  - CHAP
AU  - Petronijević, Mira
AU  - Nefovska-Danilović, Marija
AU  - Kolarević, Nevenka
AU  - Marjanović, Miroslav
AU  - Jočković, Miloš
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1073
AB  - In the paper, verification of the model based on the DSM for free vibration analysis of rectangular plate
assemblies according to the shear-deformable plate theories is presented. Plates and plate assemblies
having constant and non-uniform thickness, different boundary conditions, as well as stiffened plates,
have been analyzed. Parametric study has been performed and some conclusions have been derived.
PB  - Beograd: Univerzitet u Beogradu, Građevinski fakultet
PB  - Podgorica: Univerzitet Crne Gore, Građevinski fakultet
T2  - Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića
T1  - Metoda dinamičke krutosti u dinamičkoj analizi ploča - deo 2: primena
EP  - 100
SP  - 91
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1073
ER  - 
@inbook{
author = "Petronijević, Mira and Nefovska-Danilović, Marija and Kolarević, Nevenka and Marjanović, Miroslav and Jočković, Miloš",
year = "2016",
abstract = "In the paper, verification of the model based on the DSM for free vibration analysis of rectangular plate
assemblies according to the shear-deformable plate theories is presented. Plates and plate assemblies
having constant and non-uniform thickness, different boundary conditions, as well as stiffened plates,
have been analyzed. Parametric study has been performed and some conclusions have been derived.",
publisher = "Beograd: Univerzitet u Beogradu, Građevinski fakultet, Podgorica: Univerzitet Crne Gore, Građevinski fakultet",
journal = "Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića",
booktitle = "Metoda dinamičke krutosti u dinamičkoj analizi ploča - deo 2: primena",
pages = "100-91",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1073"
}
Petronijević, M., Nefovska-Danilović, M., Kolarević, N., Marjanović, M.,& Jočković, M.. (2016). Metoda dinamičke krutosti u dinamičkoj analizi ploča - deo 2: primena. in Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića
Beograd: Univerzitet u Beogradu, Građevinski fakultet., 91-100.
https://hdl.handle.net/21.15107/rcub_grafar_1073
Petronijević M, Nefovska-Danilović M, Kolarević N, Marjanović M, Jočković M. Metoda dinamičke krutosti u dinamičkoj analizi ploča - deo 2: primena. in Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića. 2016;:91-100.
https://hdl.handle.net/21.15107/rcub_grafar_1073 .
Petronijević, Mira, Nefovska-Danilović, Marija, Kolarević, Nevenka, Marjanović, Miroslav, Jočković, Miloš, "Metoda dinamičke krutosti u dinamičkoj analizi ploča - deo 2: primena" in Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića (2016):91-100,
https://hdl.handle.net/21.15107/rcub_grafar_1073 .

Free vibration analysis of plate assemblies using the dynamic stiffness method based on the higher order shear deformation theory

Kolarević, Nevenka; Marjanović, Miroslav; Nefovska-Danilović, Marija; Petronijević, Mira

(Academic Press, 2016)

TY  - JOUR
AU  - Kolarević, Nevenka
AU  - Marjanović, Miroslav
AU  - Nefovska-Danilović, Marija
AU  - Petronijević, Mira
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/800
AB  - This paper deals with the free vibration analysis of isotropic plate assemblies using the dynamic stiffness method (DSM) based on the Reddy's higher-order shear deformation theory (HSDT). Using the proposed method, the isotropic rectangular plate assemblies of non-uniform thickness and material properties can be analyzed. The proposed model does not have any restrictions regarding the boundary conditions or the frequency limitations. It enables free vibration analysis of both thin and thick plates, making it advantageous in comparison with the conventional finite element method (FEM) regarding the computational cost and the accuracy of the results. Three coupled Euler-Lagrange equations of motion based on the HSDT have been transformed into two uncoupled equations of motion introducing a boundary layer function. The dynamic stiffness matrix for a completely free rectangular plate element has been derived using the superposition and the projection method. The proposed numerical model has been applied in the free vibration analysis of rectangular plate assemblies. Along with the convergence study, the results for natural frequencies have been validated against the existing data from the literature, the previous results from the authors as well as the results obtained by using the finite element software Abaqus. Excellent agreement has been obtained. Finally, a variety of new results is provided as a benchmark for future investigations.
PB  - Academic Press
T2  - Journal of Sound and Vibration
T1  - Free vibration analysis of plate assemblies using the dynamic stiffness method based on the higher order shear deformation theory
EP  - 132
SP  - 110
VL  - 364
DO  - 10.1016/j.jsv.2015.11.016
ER  - 
@article{
author = "Kolarević, Nevenka and Marjanović, Miroslav and Nefovska-Danilović, Marija and Petronijević, Mira",
year = "2016",
abstract = "This paper deals with the free vibration analysis of isotropic plate assemblies using the dynamic stiffness method (DSM) based on the Reddy's higher-order shear deformation theory (HSDT). Using the proposed method, the isotropic rectangular plate assemblies of non-uniform thickness and material properties can be analyzed. The proposed model does not have any restrictions regarding the boundary conditions or the frequency limitations. It enables free vibration analysis of both thin and thick plates, making it advantageous in comparison with the conventional finite element method (FEM) regarding the computational cost and the accuracy of the results. Three coupled Euler-Lagrange equations of motion based on the HSDT have been transformed into two uncoupled equations of motion introducing a boundary layer function. The dynamic stiffness matrix for a completely free rectangular plate element has been derived using the superposition and the projection method. The proposed numerical model has been applied in the free vibration analysis of rectangular plate assemblies. Along with the convergence study, the results for natural frequencies have been validated against the existing data from the literature, the previous results from the authors as well as the results obtained by using the finite element software Abaqus. Excellent agreement has been obtained. Finally, a variety of new results is provided as a benchmark for future investigations.",
publisher = "Academic Press",
journal = "Journal of Sound and Vibration",
title = "Free vibration analysis of plate assemblies using the dynamic stiffness method based on the higher order shear deformation theory",
pages = "132-110",
volume = "364",
doi = "10.1016/j.jsv.2015.11.016"
}
Kolarević, N., Marjanović, M., Nefovska-Danilović, M.,& Petronijević, M.. (2016). Free vibration analysis of plate assemblies using the dynamic stiffness method based on the higher order shear deformation theory. in Journal of Sound and Vibration
Academic Press., 364, 110-132.
https://doi.org/10.1016/j.jsv.2015.11.016
Kolarević N, Marjanović M, Nefovska-Danilović M, Petronijević M. Free vibration analysis of plate assemblies using the dynamic stiffness method based on the higher order shear deformation theory. in Journal of Sound and Vibration. 2016;364:110-132.
doi:10.1016/j.jsv.2015.11.016 .
Kolarević, Nevenka, Marjanović, Miroslav, Nefovska-Danilović, Marija, Petronijević, Mira, "Free vibration analysis of plate assemblies using the dynamic stiffness method based on the higher order shear deformation theory" in Journal of Sound and Vibration, 364 (2016):110-132,
https://doi.org/10.1016/j.jsv.2015.11.016 . .
28
21
30

Dynamic stiffness method in the vibration analysis of circular cylindrical shell

Kolarević, Nevenka; Nefovska-Danilović, Marija; Petronijević, Mira

(Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd, 2016)

TY  - JOUR
AU  - Kolarević, Nevenka
AU  - Nefovska-Danilović, Marija
AU  - Petronijević, Mira
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/786
AB  - In this paper the dynamic stiffness method is used for free vibration analysis of a circular cylindrical shell. The dynamic stiffness matrix is formulated on the base of the exact solution for free vibration of a circular cylindrical shell according to the Flügge thin shell theory. The matrix is frequency dependent and, besides the stiffness, includes inertia and damping effects. The derived dynamic stiffness matrix is implemented in the code developed in a Matlab program for computing natural frequencies and mode shapes of a circular cylindrical shell. Several numerical examples are carried out. The obtained results are validated against the results obtained by using the commercial finite element program Abaqus as well as the available analytical solutions from the literature.
AB  - U ovom radu korišćena je metoda dinamičke krutosti za analizu slobodnih vibracija kružne cilindrične ljuske. Dinamička matrica krutosti formulisana je na osnovu tačnog rešenja sistema diferencijalnih jednačina problema slobodnih vibracija po Flügge-ovoj teoriji ljuski. To je frekventno zavisna matrica koja u sebi, pored krutosti, sadrži uticaj inercije i prigušenja. Izvedena dinamička matica krutosti implementirana je u za tu svrhu napisani Matlab program za određivanje sopstvenih frekvencija i oblika oscilovanja kružne cilindrične ljuske. Urađen je niz primera. Rezultati dobijeni primenom dinamičke matrice krutosti upoređeni su s rezultatima dobijenim pomoću komercijalnog programa zasnovanog na metodi konačnih elemenata Abaqus, kao i sa dostupnim analitičkim rezultatima iz literature.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Dynamic stiffness method in the vibration analysis of circular cylindrical shell
T1  - Metoda dinamičke krutosti u analizi vibracija kružne cilindrične ljuske
EP  - 61
IS  - 3
SP  - 45
VL  - 59
DO  - 10.5937/grmk1603045K
ER  - 
@article{
author = "Kolarević, Nevenka and Nefovska-Danilović, Marija and Petronijević, Mira",
year = "2016",
abstract = "In this paper the dynamic stiffness method is used for free vibration analysis of a circular cylindrical shell. The dynamic stiffness matrix is formulated on the base of the exact solution for free vibration of a circular cylindrical shell according to the Flügge thin shell theory. The matrix is frequency dependent and, besides the stiffness, includes inertia and damping effects. The derived dynamic stiffness matrix is implemented in the code developed in a Matlab program for computing natural frequencies and mode shapes of a circular cylindrical shell. Several numerical examples are carried out. The obtained results are validated against the results obtained by using the commercial finite element program Abaqus as well as the available analytical solutions from the literature., U ovom radu korišćena je metoda dinamičke krutosti za analizu slobodnih vibracija kružne cilindrične ljuske. Dinamička matrica krutosti formulisana je na osnovu tačnog rešenja sistema diferencijalnih jednačina problema slobodnih vibracija po Flügge-ovoj teoriji ljuski. To je frekventno zavisna matrica koja u sebi, pored krutosti, sadrži uticaj inercije i prigušenja. Izvedena dinamička matica krutosti implementirana je u za tu svrhu napisani Matlab program za određivanje sopstvenih frekvencija i oblika oscilovanja kružne cilindrične ljuske. Urađen je niz primera. Rezultati dobijeni primenom dinamičke matrice krutosti upoređeni su s rezultatima dobijenim pomoću komercijalnog programa zasnovanog na metodi konačnih elemenata Abaqus, kao i sa dostupnim analitičkim rezultatima iz literature.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Dynamic stiffness method in the vibration analysis of circular cylindrical shell, Metoda dinamičke krutosti u analizi vibracija kružne cilindrične ljuske",
pages = "61-45",
number = "3",
volume = "59",
doi = "10.5937/grmk1603045K"
}
Kolarević, N., Nefovska-Danilović, M.,& Petronijević, M.. (2016). Dynamic stiffness method in the vibration analysis of circular cylindrical shell. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 59(3), 45-61.
https://doi.org/10.5937/grmk1603045K
Kolarević N, Nefovska-Danilović M, Petronijević M. Dynamic stiffness method in the vibration analysis of circular cylindrical shell. in Građevinski materijali i konstrukcije. 2016;59(3):45-61.
doi:10.5937/grmk1603045K .
Kolarević, Nevenka, Nefovska-Danilović, Marija, Petronijević, Mira, "Dynamic stiffness method in the vibration analysis of circular cylindrical shell" in Građevinski materijali i konstrukcije, 59, no. 3 (2016):45-61,
https://doi.org/10.5937/grmk1603045K . .
8
6

Free vibration study of sandwich plates using a family of novel shear deformable dynamic stiffness elements: limitations and comparison with the finite element solutions

Marjanović, Miroslav; Kolarević, Nevenka; Nefovska-Danilović, Marija; Petronijević, Mira

(Elsevier Ltd, 2016)

TY  - JOUR
AU  - Marjanović, Miroslav
AU  - Kolarević, Nevenka
AU  - Nefovska-Danilović, Marija
AU  - Petronijević, Mira
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/776
AB  - In this paper, the dynamic stiffness matrix of a completely free rectangular multi-layer plate element based on Reddy's higher-order shear deformation theory is derived. The reduction of the proposed model to the first-order shear deformation theory-based formulation is presented. Three coupled Euler-Lagrange equations of motion have been transformed into two uncoupled equations introducing a boundary layer function. The proposed model enables free transverse vibration analysis of rectangular multi-layer plates with (transversely) isotropic layers having arbitrary combinations of boundary conditions. The influence of transverse shear deformation is discussed along with the applicability of two shear deformable dynamic stiffness elements. Moreover, the influence of the boundary conditions on the free vibration characteristics of sandwich panels has been discussed. The natural frequencies obtained using different dynamic stiffness multi-layer plate elements have been validated against the solutions from the commercial software Abaqus and the previously verified numerical solutions using layered finite elements. The limitations of the model regarding the differences between material properties of the face and core layers within a sandwich plate are highlighted. The influence of face-to-core thickness ratio on natural frequencies is illustrated, while a variety of new results is provided as a benchmark for future investigations.
PB  - Elsevier Ltd
T2  - Thin-Walled Structures
T1  - Free vibration study of sandwich plates using a family of novel shear deformable dynamic stiffness elements: limitations and comparison with the finite element solutions
EP  - 694
SP  - 678
VL  - 107
DO  - 10.1016/j.tws.2016.08.002
ER  - 
@article{
author = "Marjanović, Miroslav and Kolarević, Nevenka and Nefovska-Danilović, Marija and Petronijević, Mira",
year = "2016",
abstract = "In this paper, the dynamic stiffness matrix of a completely free rectangular multi-layer plate element based on Reddy's higher-order shear deformation theory is derived. The reduction of the proposed model to the first-order shear deformation theory-based formulation is presented. Three coupled Euler-Lagrange equations of motion have been transformed into two uncoupled equations introducing a boundary layer function. The proposed model enables free transverse vibration analysis of rectangular multi-layer plates with (transversely) isotropic layers having arbitrary combinations of boundary conditions. The influence of transverse shear deformation is discussed along with the applicability of two shear deformable dynamic stiffness elements. Moreover, the influence of the boundary conditions on the free vibration characteristics of sandwich panels has been discussed. The natural frequencies obtained using different dynamic stiffness multi-layer plate elements have been validated against the solutions from the commercial software Abaqus and the previously verified numerical solutions using layered finite elements. The limitations of the model regarding the differences between material properties of the face and core layers within a sandwich plate are highlighted. The influence of face-to-core thickness ratio on natural frequencies is illustrated, while a variety of new results is provided as a benchmark for future investigations.",
publisher = "Elsevier Ltd",
journal = "Thin-Walled Structures",
title = "Free vibration study of sandwich plates using a family of novel shear deformable dynamic stiffness elements: limitations and comparison with the finite element solutions",
pages = "694-678",
volume = "107",
doi = "10.1016/j.tws.2016.08.002"
}
Marjanović, M., Kolarević, N., Nefovska-Danilović, M.,& Petronijević, M.. (2016). Free vibration study of sandwich plates using a family of novel shear deformable dynamic stiffness elements: limitations and comparison with the finite element solutions. in Thin-Walled Structures
Elsevier Ltd., 107, 678-694.
https://doi.org/10.1016/j.tws.2016.08.002
Marjanović M, Kolarević N, Nefovska-Danilović M, Petronijević M. Free vibration study of sandwich plates using a family of novel shear deformable dynamic stiffness elements: limitations and comparison with the finite element solutions. in Thin-Walled Structures. 2016;107:678-694.
doi:10.1016/j.tws.2016.08.002 .
Marjanović, Miroslav, Kolarević, Nevenka, Nefovska-Danilović, Marija, Petronijević, Mira, "Free vibration study of sandwich plates using a family of novel shear deformable dynamic stiffness elements: limitations and comparison with the finite element solutions" in Thin-Walled Structures, 107 (2016):678-694,
https://doi.org/10.1016/j.tws.2016.08.002 . .
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18
31

Metoda dinamičke krutosti u dinamičkoj analizi sistema ploča - deo 1: teorija

Petronijević, Mira; Nefovska-Danilović, Marija; Kolarević, Nevenka; Marjanović, Miroslav; Jočković, Miloš

(Beograd: Univerzitet u Beogradu, Građevinski fakultet, 2016)

TY  - CHAP
AU  - Petronijević, Mira
AU  - Nefovska-Danilović, Marija
AU  - Kolarević, Nevenka
AU  - Marjanović, Miroslav
AU  - Jočković, Miloš
PY  - 2016
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1075
AB  - In a paper, theoretical bases of the dynamic stiffness method in the analysis of free vibration problem of
plate assemblies are presented. Governing equations are derived based on Mindlin, as well as higherorder
shear deformation theory. Transverse and in-plane vibrations are considered, as well as isotropic
material. Transformation matrix for stiffened plates is derived.
PB  - Beograd: Univerzitet u Beogradu, Građevinski fakultet
PB  - Podgorica: Univerzitet Crne Gore, Građevinski fakultet
T2  - Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića
T1  - Metoda dinamičke krutosti u dinamičkoj analizi sistema ploča - deo 1: teorija
EP  - 90
SP  - 79
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1075
ER  - 
@inbook{
author = "Petronijević, Mira and Nefovska-Danilović, Marija and Kolarević, Nevenka and Marjanović, Miroslav and Jočković, Miloš",
year = "2016",
abstract = "In a paper, theoretical bases of the dynamic stiffness method in the analysis of free vibration problem of
plate assemblies are presented. Governing equations are derived based on Mindlin, as well as higherorder
shear deformation theory. Transverse and in-plane vibrations are considered, as well as isotropic
material. Transformation matrix for stiffened plates is derived.",
publisher = "Beograd: Univerzitet u Beogradu, Građevinski fakultet, Podgorica: Univerzitet Crne Gore, Građevinski fakultet",
journal = "Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića",
booktitle = "Metoda dinamičke krutosti u dinamičkoj analizi sistema ploča - deo 1: teorija",
pages = "90-79",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1075"
}
Petronijević, M., Nefovska-Danilović, M., Kolarević, N., Marjanović, M.,& Jočković, M.. (2016). Metoda dinamičke krutosti u dinamičkoj analizi sistema ploča - deo 1: teorija. in Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića
Beograd: Univerzitet u Beogradu, Građevinski fakultet., 79-90.
https://hdl.handle.net/21.15107/rcub_grafar_1075
Petronijević M, Nefovska-Danilović M, Kolarević N, Marjanović M, Jočković M. Metoda dinamičke krutosti u dinamičkoj analizi sistema ploča - deo 1: teorija. in Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića. 2016;:79-90.
https://hdl.handle.net/21.15107/rcub_grafar_1075 .
Petronijević, Mira, Nefovska-Danilović, Marija, Kolarević, Nevenka, Marjanović, Miroslav, Jočković, Miloš, "Metoda dinamičke krutosti u dinamičkoj analizi sistema ploča - deo 1: teorija" in Savremeni problemi teorije konstrukcija : monografija posvećena uspomeni na profesora Đorđa Vuksanovića (2016):79-90,
https://hdl.handle.net/21.15107/rcub_grafar_1075 .

Transverse vibration of rectangular Mindlin plate using spectral element method

Kolarević, Nevenka; Nefovska-Danilović, Marija; Petronijević, Mira

(Springer International Publishing, Cham, 2015)

TY  - CONF
AU  - Kolarević, Nevenka
AU  - Nefovska-Danilović, Marija
AU  - Petronijević, Mira
PY  - 2015
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/1359
PB  - Springer International Publishing, Cham
C3  - Stability, Vibration, and Control of Machines and Structures : Keynote and invited Lectures of the International Symposium on Stability, Vibration, and Control of Machines and Structures Belgrade, July 3-5,2014
T1  - Transverse vibration of rectangular Mindlin plate using spectral element method
EP  - 307
SP  - 296
UR  - https://hdl.handle.net/21.15107/rcub_grafar_1359
ER  - 
@conference{
author = "Kolarević, Nevenka and Nefovska-Danilović, Marija and Petronijević, Mira",
year = "2015",
publisher = "Springer International Publishing, Cham",
journal = "Stability, Vibration, and Control of Machines and Structures : Keynote and invited Lectures of the International Symposium on Stability, Vibration, and Control of Machines and Structures Belgrade, July 3-5,2014",
title = "Transverse vibration of rectangular Mindlin plate using spectral element method",
pages = "307-296",
url = "https://hdl.handle.net/21.15107/rcub_grafar_1359"
}
Kolarević, N., Nefovska-Danilović, M.,& Petronijević, M.. (2015). Transverse vibration of rectangular Mindlin plate using spectral element method. in Stability, Vibration, and Control of Machines and Structures : Keynote and invited Lectures of the International Symposium on Stability, Vibration, and Control of Machines and Structures Belgrade, July 3-5,2014
Springer International Publishing, Cham., 296-307.
https://hdl.handle.net/21.15107/rcub_grafar_1359
Kolarević N, Nefovska-Danilović M, Petronijević M. Transverse vibration of rectangular Mindlin plate using spectral element method. in Stability, Vibration, and Control of Machines and Structures : Keynote and invited Lectures of the International Symposium on Stability, Vibration, and Control of Machines and Structures Belgrade, July 3-5,2014. 2015;:296-307.
https://hdl.handle.net/21.15107/rcub_grafar_1359 .
Kolarević, Nevenka, Nefovska-Danilović, Marija, Petronijević, Mira, "Transverse vibration of rectangular Mindlin plate using spectral element method" in Stability, Vibration, and Control of Machines and Structures : Keynote and invited Lectures of the International Symposium on Stability, Vibration, and Control of Machines and Structures Belgrade, July 3-5,2014 (2015):296-307,
https://hdl.handle.net/21.15107/rcub_grafar_1359 .

Dynamic stiffness elements for free vibration analysis of rectangular Mindlin plate assemblies

Kolarević, Nevenka; Nefovska-Danilović, Marija; Petronijević, Mira

(Academic Press, 2015)

TY  - JOUR
AU  - Kolarević, Nevenka
AU  - Nefovska-Danilović, Marija
AU  - Petronijević, Mira
PY  - 2015
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/680
AB  - The dynamic stiffness matrix of completely free rectangular Mindlin plate element is presented in this paper. The system of three coupled equations of motion is transformed into two uncoupled equations introducing a boundary layer function. The dynamic stiffness matrix is derived by use of the superposition method and the projection method. Using the proposed method natural frequencies of individual plates and plate assemblies with arbitrary boundary conditions are computed and validated against the results available in the literature and the finite element analysis. High efficiency and accuracy of the results are demonstrated.
PB  - Academic Press
T2  - Journal of Sound and Vibration
T1  - Dynamic stiffness elements for free vibration analysis of rectangular Mindlin plate assemblies
EP  - 106
SP  - 84
VL  - 359
DO  - 10.1016/j.jsv.2015.06.031
ER  - 
@article{
author = "Kolarević, Nevenka and Nefovska-Danilović, Marija and Petronijević, Mira",
year = "2015",
abstract = "The dynamic stiffness matrix of completely free rectangular Mindlin plate element is presented in this paper. The system of three coupled equations of motion is transformed into two uncoupled equations introducing a boundary layer function. The dynamic stiffness matrix is derived by use of the superposition method and the projection method. Using the proposed method natural frequencies of individual plates and plate assemblies with arbitrary boundary conditions are computed and validated against the results available in the literature and the finite element analysis. High efficiency and accuracy of the results are demonstrated.",
publisher = "Academic Press",
journal = "Journal of Sound and Vibration",
title = "Dynamic stiffness elements for free vibration analysis of rectangular Mindlin plate assemblies",
pages = "106-84",
volume = "359",
doi = "10.1016/j.jsv.2015.06.031"
}
Kolarević, N., Nefovska-Danilović, M.,& Petronijević, M.. (2015). Dynamic stiffness elements for free vibration analysis of rectangular Mindlin plate assemblies. in Journal of Sound and Vibration
Academic Press., 359, 84-106.
https://doi.org/10.1016/j.jsv.2015.06.031
Kolarević N, Nefovska-Danilović M, Petronijević M. Dynamic stiffness elements for free vibration analysis of rectangular Mindlin plate assemblies. in Journal of Sound and Vibration. 2015;359:84-106.
doi:10.1016/j.jsv.2015.06.031 .
Kolarević, Nevenka, Nefovska-Danilović, Marija, Petronijević, Mira, "Dynamic stiffness elements for free vibration analysis of rectangular Mindlin plate assemblies" in Journal of Sound and Vibration, 359 (2015):84-106,
https://doi.org/10.1016/j.jsv.2015.06.031 . .
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