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Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles
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Chao CHANG1,2,3, Liang LING2, Xiaoyi MA1, Fansong LI2, Tao LIU3, Wanming ZHAI2. Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles[J]. Journal of Zhejiang University Science A, 1998, -1(-1): .
@article{title="Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles",
author="Chao CHANG1,2,3, Liang LING2, Xiaoyi MA1, Fansong LI2, Tao LIU3, Wanming ZHAI2",
journal="Journal of Zhejiang University Science A",
volume="-1",
number="-1",
pages="",
year="1998",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2400478"
}
%0 Journal Article
%T Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles
%A Chao CHANG1
%A 2
%A 3
%A Liang LING2
%A Xiaoyi MA1
%A Fansong LI2
%A Tao LIU3
%A Wanming ZHAI2
%J Journal of Zhejiang University SCIENCE A
%V -1
%N -1
%P
%@ 1673-565X
%D 1998
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2400478
TY - JOUR
T1 - Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles
A1 - Chao CHANG1
A1 - 2
A1 - 3
A1 - Liang LING2
A1 - Xiaoyi MA1
A1 - Fansong LI2
A1 - Tao LIU3
A1 - Wanming ZHAI2
J0 - Journal of Zhejiang University Science A
VL - -1
IS - -1
SP -
EP -
%@ 1673-565X
Y1 - 1998
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A2400478
Abstract: The flexible resonance phenomenon of a carbody greatly affects the stability and safety of high-speed trains. Therefore, an accurate finite element (FE) model is crucial for establishing a rigid-flexible multi-body dynamics model and revealing the flexible resonance mechanism of high-speed trains. In this paper, we introduce an effective calibration and validation methodology for a carbody FE model of high-speed trains based on experimental modal analysis (EMA). A detailed three-dimensional (3D) carbody FE model that considers practical constraints was developed, and the carbody material parameters were optimized using a genetic algorithm (GA). Based on the updated model, a high-speed railway vehicle-track rigid-flexible coupled dynamics model was established. Results showed excellent agreement between the numerical simulations and field measurements. The proposed method was able to accurately reproduce the carbody flexible resonance phenomenon and elastic modal frequency observed on site.
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