Dynamic test and analysis of rack vehicle-track coupled system on large slope line

被引:7
作者
Chen, Zaigang [1 ]
Yang, Guojun [1 ]
Ning, Jieyu [1 ]
Chen, Zhihui [1 ,2 ]
Yang, Jizhong [2 ]
Wang, Kai [3 ]
Zhai, Wanming [1 ]
机构
[1] Southwest Jiaotong Univ, State Key Lab Rail Transit Vehicle Syst, Chengdu 610031, Sichuan, Peoples R China
[2] China Railway Eryuan Engn Grp Co Ltd, Sci Res Inst, Chengdu 610031, Sichuan, Peoples R China
[3] CRRC Ziyang CO LTD, Ziyang 641300, Sichuan, Peoples R China
基金
中国国家自然科学基金;
关键词
Rack railway; Field test; Vehicle-track coupled dynamics; Gear-rack engagement; Vibration transmission; FIELD; GEAR; MODEL; WEAR;
D O I
10.1016/j.measurement.2024.115263
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The rack railway is widely used in mountainous areas for its strong climbing ability. However, its dynamic characteristics have been reported only in very limited literature, especially in the field test. Therefore, this study presents a systematic dynamic test and detailed analysis of a rack vehicle-track system. Firstly, the vibration accelerations of the rack vehicle components, the wheel-rail forces, and the rack tooth bending stress are tested. Then, the interactions of the wheel-rail and gear-rack systems, the rack's load characteristics, and the rack vehicle's vibration characteristics are analyzed. The results indicate the complicated interactions between the wheel-rail contact and the gear-rack mesh, particularly in the curved sections. Furthermore, the vibrations of the rack vehicles primarily originate from gear-rack engagements, as well as impacts at rack joints, and these vibrations are partially alleviated by the suspension system. This study may provide valuable references for dynamic simulation of rack vehicle-track coupled systems.
引用
收藏
页数:12
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