Track irregularity simulation of dual 6-DOF test-bed based on wavelet theory

被引：0

作者：

Liu Y.-M. ^{[1
]}

Zhuang J.-J. ^{[1
]}

Cao X.-N. ^{[2
]}

机构：

[1] College of Transportation, Jilin University, Changchun

[2] CRRC Qingdao Sifang Co. Ltd., Qingdao

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2019年 / 49卷 / 01期

关键词：

Dual 6-DOF test-bed; Inverse kinematics solution; Railway transportation; Track irregularity; Wavelet theory;

D O I：

10.13229/j.cnki.jdxbgxb20171251

中图分类号：

学科分类号：

摘要：

In order to increase the simulation accuracy and improve the process of track irregularity, with the research foundation of the power spectrum, a new method was proposed by using the wavelet theory to simulate the time domain waveform of track irregularity. Taking the sixth grade track irregularity PSD of US as an example, the simulated values and analytical values of the power spectrum were obtained by using the trigonometric function method and the wavelet theory simulation method respectively. A comparison of the two methods indicates that the wavelet simulation method has higher accuracy. Furthermore, the time domain signal obtained by the wavelet simulation method was taken as the input of vibration excitation, and the extension amount of each actuator of the 2-6DOF test-bed was obtained by position kinematics solution model, which was built in Matlab-Simulink. The simulation experiment was carried out on the test-bed, and good waveform reproduction was obtained, which demonstrates that the proposed simulation method is feasible. © 2019, Editorial Board of Jilin University. All right reserved.

引用

页码：30 / 38

页数：8

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