Dynamic reliability analysis of vehicle-track coupled systems considering randomness of track irregularities

Wang, W, Zhang, Y and Ouyang, H ORCID: 0000-0003-0312-0326 (2019) Dynamic reliability analysis of vehicle-track coupled systems considering randomness of track irregularities. Dalian Ligong Daxue Xuebao/Journal of Dalian University of Technology, 59 (2). pp. 111-117.

Text 考虑轨道不平顺随机性的车轨耦合系统动力可靠度分析_王伟20181203_大工学报接收.docx - Author Accepted Manuscript Download (600kB)

Abstract

A solution method for dynamic reliability of vehicle-track coupled systems considering the randomness of track irregularities is presented by combining the wheel-rail force prediction based iterative solution technique with the subset simulation (SS) method. The solution efficiency of system reliability has been improved by improving the solution efficiency and reducing the number of solutions of deterministic responses. Taking a CRH2 new vehicle as an example, the failure probabilities of the lateral ride quality index on the tangent track and the wheel derailment coefficient during curve negotiation exceeding limits are calculated, respectively. The calculation accuracy and the efficiency of the presented method are verified by comparison with the direct Monte Carlo simulation (DMCS). The influence of random track irregularities in different wavelength ranges on the dynamic reliability of vehicle system is also analyzed, and the results are in good agreement with the existing research literatures, which further verifies the correctness of the presented method.

Item Type:	Article
Depositing User:	Symplectic Admin
Date Deposited:	26 Jun 2019 10:24
Last Modified:	19 Jan 2023 00:39
DOI:	10.7511/dllgxb201902001
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3047489