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Dynamic stiffness method in the vibration analysis of circular cylindrical shell

Metoda dinamičke krutosti u analizi vibracija kružne cilindrične ljuske

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2016
784.pdf (477.8Kb)
Authors
Kolarević, Nevenka
Nefovska-Danilović, Marija
Petronijević, Mira
Article (Published version)
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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.
Keywords:
free vibration / circular cylindrical shell / Flügge thin shell theory / dynamic stiffness matrix / slobodne vibracije / dinamička matica krutosti / Flügge-ova teorija ljuski
Source:
Građevinski materijali i konstrukcije, 2016, 59, 3, 45-61
Publisher:
  • Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
Funding / projects:
  • Towards development of sustainable cities: influence of traffic induced vibrations on buildings and humans (RS-36046)

DOI: 10.5937/grmk1603045K

ISSN: 2217-8139

WoS: 000381278600003

[ Google Scholar ]
6
URI
https://grafar.grf.bg.ac.rs/handle/123456789/786
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  • Radovi istraživača / Researcher's publications
  • Катедра за техничку механику и теорију конструкција
Institution/Community
GraFar
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 . .

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