Analysis of modal properties of two nominaly identical turbine supporting structures
Abstract
The paper presents study of modal parameters identification of two turbine supporting structures of unit-A1 and unit-A2 in Power Plant Nikola Tesla – A in Obrenovac – Republic of Serbia, based on ambient vibration measurements. Vibration response measurements of structures were carried out in two measurement campaigns under ambient excitation, each time on unit which was out of operation. Modal frequencies and mode shapes were extracted using Frequency Domain Decomposition (FDD) technique according to recorded acceleration data. The performed numerical analysis established the dynamic characteristics of the analysed table-top foundation structure adequate to the experimentally determined ones.
Keywords:
Ambient Modal Identification / Ambient vibrations / Modal Parameters / Frequency Domain Decomposition / Turbine foundationSource:
Association of Sructural Engineering of Serbia - Symposium 2020, 2021, 511-518Funding / projects:
Collections
Institution/Community
GraFarTY - CONF AU - Mišković, Zoran AU - Popović, Marko AU - Pecić, Nenad AU - Savatović, Siniša AU - Latinović, Marina PY - 2021 UR - https://grafar.grf.bg.ac.rs/handle/123456789/2380 AB - The paper presents study of modal parameters identification of two turbine supporting structures of unit-A1 and unit-A2 in Power Plant Nikola Tesla – A in Obrenovac – Republic of Serbia, based on ambient vibration measurements. Vibration response measurements of structures were carried out in two measurement campaigns under ambient excitation, each time on unit which was out of operation. Modal frequencies and mode shapes were extracted using Frequency Domain Decomposition (FDD) technique according to recorded acceleration data. The performed numerical analysis established the dynamic characteristics of the analysed table-top foundation structure adequate to the experimentally determined ones. C3 - Association of Sructural Engineering of Serbia - Symposium 2020 T1 - Analysis of modal properties of two nominaly identical turbine supporting structures VL - 511-518 UR - https://hdl.handle.net/21.15107/rcub_grafar_2380 ER -
@conference{ author = "Mišković, Zoran and Popović, Marko and Pecić, Nenad and Savatović, Siniša and Latinović, Marina", year = "2021", abstract = "The paper presents study of modal parameters identification of two turbine supporting structures of unit-A1 and unit-A2 in Power Plant Nikola Tesla – A in Obrenovac – Republic of Serbia, based on ambient vibration measurements. Vibration response measurements of structures were carried out in two measurement campaigns under ambient excitation, each time on unit which was out of operation. Modal frequencies and mode shapes were extracted using Frequency Domain Decomposition (FDD) technique according to recorded acceleration data. The performed numerical analysis established the dynamic characteristics of the analysed table-top foundation structure adequate to the experimentally determined ones.", journal = "Association of Sructural Engineering of Serbia - Symposium 2020", title = "Analysis of modal properties of two nominaly identical turbine supporting structures", volume = "511-518", url = "https://hdl.handle.net/21.15107/rcub_grafar_2380" }
Mišković, Z., Popović, M., Pecić, N., Savatović, S.,& Latinović, M.. (2021). Analysis of modal properties of two nominaly identical turbine supporting structures. in Association of Sructural Engineering of Serbia - Symposium 2020, 511-518. https://hdl.handle.net/21.15107/rcub_grafar_2380
Mišković Z, Popović M, Pecić N, Savatović S, Latinović M. Analysis of modal properties of two nominaly identical turbine supporting structures. in Association of Sructural Engineering of Serbia - Symposium 2020. 2021;511-518. https://hdl.handle.net/21.15107/rcub_grafar_2380 .
Mišković, Zoran, Popović, Marko, Pecić, Nenad, Savatović, Siniša, Latinović, Marina, "Analysis of modal properties of two nominaly identical turbine supporting structures" in Association of Sructural Engineering of Serbia - Symposium 2020, 511-518 (2021), https://hdl.handle.net/21.15107/rcub_grafar_2380 .