Ming-ming Cao1 and Zhen-rui Peng This email address is being protected from spambots. You need JavaScript enabled to view it.1

1School of Mechanical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China


 

Received: June 28, 2020
Accepted: January 5, 2021
Publication Date: June 1, 2021

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.


Download Citation: ||https://doi.org/10.6180/jase.202106_24(3).0014  


ABSTRACT


To establish an accurate finite element model of high-speed train wheels and provide a basis for further analysis, the finite element model of the wheels is updated according to the wheels’ frequency response. Firstly, a finite element model of wheel is established according to the wheel parameters. The initial sample points are designed with Latin hypercube sampling, and corresponding frequency responses are analyzed by finite element software according to the sample points. Secondly, the Kriging model is constructed with wheel parameters to be updated as the inputs and the frequency response corresponding to sample points as the outputs, and the correlation coefficient of the Kriging model is optimized by water cycle algorithm. Finally, the Kriging model is constructed instead of the finite element model for iterative optimization to obtain the updated parameters of the wheel. The updating results show that the updating method is effective, and the updated finite element model of high-speed train wheels is more accurate.


Keywords: High-speed train wheel; Model updating; Finite element model; Frequency response; Kriging model.


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