Second International Conference on Rail Transportation
Running Stability Analysis for Express Wagon with Modified Stochastic Perturbation Method
Publication: ICRT 2021
ABSTRACT
The design idea of express wagon is to ensure that the car-body has the characteristics of hi-cube capacity and easy loading and unloading which indirect causes the stiffness of car-body is changed with uncertain factors, such as the full sliding side covered and other forms of design, thus the running stability of the vehicle operation is affected and the risk of the transported goods is damaged will be increased. The random dynamic analysis for the express wagon is operated with the railway vehicles random analysis procedure (RVRAP) according to the analysis process firstly, then the uncertain stiffness is described by random variable and the modified stochastic perturbation method is employed to establish a deterministic approach. In this paper, the random variable parameter of side post stiffness for the express wagon is selected and the running stability index at three positions on the underframe are calculated. The result shows that the parameter uncertainty of stiffness of the side post has a greater impact on the vertical running stability than the lateral and ignoring the uncertainty of the parameter will result in a higher stability evaluation result.
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Information & Authors
Information
Published In
ICRT 2021
Pages: 293 - 304
Editors: Wanming Zhai, Ph.D., Southwest Jiaotong University, Kelvin C. P. Wang, Ph.D., Oklahoma State University, and Shengyang Zhu, Ph.D., Southwest Jiaotong University
ISBN (Online): 978-0-7844-8388-6
Copyright
© 2022 American Society of Civil Engineers.
History
Published online: Feb 8, 2022
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