|
CSME 2022/06
Volume 43 No.3
:
265-274
|
|
Reliability Analysis and Evaluation of Wheel Axle for High-Speed Train Considering Interference Fit
Yu-Ru Zhanga, Xin-Tian Liua and Shuang-Long Genga
aSchool of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Songjiang, Shanghai 201620, China.
|
Abstract:
The wheel axle is an important related component between high-speed train body and track, and the reliability of the connection between wheel and axle is directly related to the safe operation of high-speed train. The radial displacement of wheel axle interference surface has a great impact on the changes of interference amount. In this paper, based on the speed changes under actual train running conditions, the high-speed train wheel axle structure is simplified into a high-speed rotating ring combined sleeve model. Considering the interference fit and centrifugal force, the elastic mechanics of interference surface is analyzed to obtain the radial displacement. The reliability analysis model of high-speed train wheel axle is established on the basis of the stress intensity theory for axle equivalent stress and the variation for interference amount in allowable range. And the safety interval of wheel axle interference amount is determined by analyzing and evaluating the reliability of high-speed trains wheel axle. It has great application for the safe and reliable design of wheel axle for high-speed train.
|
|
Keywords: Reliability analysis, High-speed train wheel axle, Combined sleeve model, Interference fit.
|
Download PDF
|
|
*Corresponding author; e-mail:
|
©
2022
CSME , ISSN 0257-9731
|