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CLC number: O324

On-line Access: 2017-08-04

Received: 2016-11-22

Revision Accepted: 2017-05-15

Crosschecked: 2017-07-07

Cited: 0

Clicked: 2597

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Xue-song JIN

http://orcid.org/0000-0003-3033-758X

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Journal of Zhejiang University SCIENCE A 2017 Vol.18 No.8 P.579-592

http://doi.org/10.1631/jzus.A1600741


Experimental analysis of the mechanism of high-order polygonal wear of wheels of a high-speed train


Author(s):  Yue Wu, Xing Du, He-ji Zhang, Ze-feng Wen, Xue-song Jin

Affiliation(s):  State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China

Corresponding email(s):   xsjin@home.swjtu.edu.cn

Key Words:  High-speed train, Wheel, High-order polygonal wear, Field test, Model analysis, System resonance frequency


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Yue Wu, Xing Du, He-ji Zhang, Ze-feng Wen, Xue-song Jin. Experimental analysis of the mechanism of high-order polygonal wear of wheels of a high-speed train[J]. Journal of Zhejiang University Science A, 2017, 18(8): 579-592.

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doi="10.1631/jzus.A1600741"
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Abstract: 
This paper presents a detailed investigation, via field experiment, into the mechanism of high-order polygonal wear of wheels of a new type of high-speed train. The investigation was carried out during the performance acceptance test of the train and its initial commercial operation. The investigation covered the performance acceptance test of 150 000 km and the commercial operation of about 150 000 km. In the performance acceptance test of the first stage of about 70 000 km, at 200–250 km/h with full loading and sometimes overloading by 30%, the serious polygonal wear of 23-order took place on all the wheels of the train, and was measured and analyzed in detail. All the polygonized wheels were re-profiled because the polygonal wear had caused strong vibration and damage to the train parts. After re-profiling, the vibration of the train and track and the wear status of the wheels were measured and analyzed at different test mileages according to the polygonal wear situation of the wheels. The measured vibration of the train includes the accelerations at different positions of a motor car and a trail car. The vibration modes of the key parts of the bogies of the two cars were calculated. Meanwhile, the track resonant frequencies were investigated at the site. The purpose of the above tests and analysis is try to find the frequency of work mode matching the passing frequency of the high-order wheel polygon. The present investigation shows that one of the working models causes the formation and development of the high-order wheel polygonal wear. The growth of this wear was effectively reduced through the frequent changing of the running speed of the train operating on the way back and forth every day.

The manuscript deals with the issue of the mechanism of high-order polygonal wear of wheels in the case of the high-speed train. This problem is very interesting for railway community.

高速列车高阶车轮多边形磨耗机理的试验研究

目的:通过试验研究,对高速列车车轮多边形磨耗机理进行初步探究。
创新点:以试验方法为基础,跟踪调查车轮多边形磨耗的发展规律,然后分别对轨道系统和车辆系统开展现场试验,对导致车轮发生多边形磨耗的因素进行排查,探明了车轮多边形磨耗的机理。
方法:1. 进行车轮多边形磨耗跟踪测试;2. 进行轨道结构模态特性测试、钢轨波磨测试和轨道振动响应测试;3. 进行转向架模态特性仿真研究、悬挂系统隔振特性测试以及车辆振动特性跟踪测试。
结论:1. 列车运行时,车轮受到周期性激励作用会发生多边形磨耗,且当激励波长整分车轮周长时,多边形磨耗发展迅速;2. 作为主要激励源,轮轨接触表面出现的车轮偏心、钢轨表面不平顺、轨下支承不均匀、钢轨接头和道岔等激发了转向架系统在550~600 Hz频段内的模态耦合共振,从而导致了车轮多边形磨耗的产生;3. 变速运行可以有效地控制车轮多边形磨耗的产生与发展。

关键词:高速列车;车轮多边形磨耗;机理;试验研究;模态分析;系统共振频率

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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