• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2024, Vol. 60 ›› Issue (24): 282-295.doi: 10.3901/JME.2024.24.282

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Dynamic Performances Analysis and Wheel Wear Prediction for Gauge-changeable Railway Locomotive

SHI Huailong1, WANG Kaiyun1, DAI Huanyun1, XU Yanhui2, CHEN Jiyong2, LIU Zhiqiang2   

  1. 1. State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031;
    2. Technical Center, CRRC Datong Co., Ltd., Datong 037038
  • Received:2024-01-21 Revised:2024-09-13 Online:2024-12-20 Published:2025-02-01

Abstract: To support cross-border connectivity and the construction of the Belt and Road Railway, analyze the wheel/rail interaction and the dynamic performance for the HXD2 locomotive as well as its difference evaluated by using China standard, Soviet standard and Europe standard, then predict the difference of wheel wear evolution of JM3 tread when operated on three tracks. Results reveal that the existing treads on the broad-gauge track can adapt to both the China and Europe standard gauge tracks when using the equivalent conicity to assess the adaptability of ten treads when operated on various tracks. Whereas the existing treads in Europe and China are difficult to adapt to all three tracks. The critical speed of JM, JM2, JM3, S1002 and Belarus treads meet the actual operating speed requirement of up to 120 km/h on both the China standard gauge track and broad gauge track, while JM3 and S1002 can be furtherly compatible with the Europe standard gauge track. The dynamics indices of different treads or on different tracks are not very different. The evaluation results of hunting stability from the Europe standard are more stringent than the China standard, and the difference can be 1 to 2 times. Whereas the ride quality evaluations between the China and Europe standards are nearly the same with a difference below 10%. The ride comfort evaluations of the China standard are about 10% stricter than the Soviet standard. The safety evaluation result of the Soviet standard is slightly looser than the other two standards by 15%. By ignoring the effect of traction and brake, the tread wear distribution of the first and second wheelsets is different, resulting in a different growth pattern of the equivalent conicity with the wear, in which the conicity of the first wheelset gradually decreases. The tread wear depth and volume are the largest on the Europe standard gauge track, the smallest on the broad gauge track, and the middle on the China standard gauge track.

Key words: locomotives, wheel/rail interaction, dynamics, wheel wear, track gauge, assessment criteria

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