RESEARCH ON FATIGUE TEST METHOD OF CAR BODY OF HIGH-SPEED EMU

WANG Chao; LIU ChaoTao; WU PingBo; SONG Ye; LI FanSong; ZHANG FuBing

doi:10.16579/j.issn.1001.9669.2020.03.005

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RESEARCH ON FATIGUE TEST METHOD OF CAR BODY OF HIGH-SPEED EMU

更新时间：2022-09-22

- RESEARCH ON FATIGUE TEST METHOD OF CAR BODY OF HIGH-SPEED EMU
- Journal of Mechanical Strength Vol. 42, Issue 3, Pages: 539-544(2020)
- 作者机构：
  
  1. 中车长春轨道客车股份有限公司
  2. 西南交通大学牵引动力国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2020.03.005
  CLC：
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WANG Chao, LIU ChaoTao, WU PingBo, et al. RESEARCH ON FATIGUE TEST METHOD OF CAR BODY OF HIGH-SPEED EMU. [J]. 42(3):539-544(2020)
DOI：

WANG Chao, LIU ChaoTao, WU PingBo, et al. RESEARCH ON FATIGUE TEST METHOD OF CAR BODY OF HIGH-SPEED EMU. [J]. 42(3):539-544(2020) DOI： 10.16579/j.issn.1001.9669.2020.03.005.

摘要

车体是高速列车的重要承载部件,疲劳试验可以准确评估车体的疲劳寿命,还可以验证仿真计算模型的准确性,并可以将仿真分析时考虑不全面的工艺因素考虑在内。通过比较国内外相关标准确定了包含车体垂向、中心销横向、纵向以及车钩纵向载荷在内的高速动车组整车车体疲劳试验载荷,根据试验载荷制定了整车车体的疲劳试验方案,并根据该方案完成了国内首次高速动车组整车车体的疲劳试验。通过疲劳试验发现车钩座内侧筋板焊缝存在疲劳安全隐患并提出了优化方案,对优化后的方案近一步进行验证,最终证明了该型高速动车组车体的疲劳寿命满足设计要求。

Abstract

The vehicle body is an important bearing component of the high-speed train. The fatigue test can accurately evaluate the fatigue life of the vehicle body. It can also verify the accuracy of the simulation calculation model,and can take into account the incomplete technical considerations in the simulation analysis. This article compares the domestic and international relevant standards to determine the load of the vehicle body fatigue test of the high-speed EMU vehicle including the vertical direction of the vehicle body,the longitudinal load and the lateral load of the center pin,and the longitudinal load of the coupler,and formulates the fatigue of the vehicle body according to the test load. The test plan was completed and the fatigue test of the entire vehicle body of the first high-speed EMU in China was completed. Fatigue test found that the weld hook inside the ribbed plate weld existed hidden dangers of fatigue and put forward an optimized program. The optimized scheme was further verified.Finally,the fatigue life of the body of the high-speed EMU was proved to meet the design requirements.

关键词

高速动车组车体疲劳试验载荷试验加载方案优化

Keywords

Carbody of high speed EMUFatigue loadsTest planOptimization

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