JZUS - Journal of Zhejiang University SCIENCE

Journal of Zhejiang University SCIENCE A

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Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles

Author(s): Chao CHANG^1, ^2, ³, Liang LING², Xiaoyi MA¹, Fansong LI², Tao LIU³, Wanming ZHAI²
Affiliation(s): ¹School of Mechatronics and Vehicle Engineering, East China Jiaotong University, Nanchang 330013, China; more
Corresponding email(s): Liang LING, liangling@swjtu.edu.c
Key Words: High-speed train; Carbody flexible resonance; Finite element; Model updating; Modal frequency.

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Chao CHANG^1,^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,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A2400478

@article{title="Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles",
author="Chao CHANG^1,^2,³, Liang LING², Xiaoyi MA¹, Fansong LI², Tao LIU³, Wanming ZHAI²",
journal="Journal of Zhejiang University Science A",
year="in press",
publisher="Zhejiang University Press & Springer",
doi="https://doi.org/10.1631/jzus.A2400478"
}

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%T Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles
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%A Tao LIU³
%A Wanming ZHAI²
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doi="https://doi.org/10.1631/jzus.A2400478"

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T1 - Study of finite element model updating methodology and application to flexible resonance of high-speed railway vehicles
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A1 - Fansong LI²
A1 - Tao LIU³
A1 - Wanming ZHAI²
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doi="https://doi.org/10.1631/jzus.A2400478"

Abstract
Chinese Summary
Academic Network
Reviewer Comment

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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