Research on Anti-fatigue Technology for Metro Bogie Bolster

SUN Huidong; GAO Xiaoxia; GAO Feng; LI Zhiyong

doi:10.13890/j.issn.1000-128x.2018.01.019

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Research on Anti-fatigue Technology for Metro Bogie Bolster

更新时间：2021-12-13

- Research on Anti-fatigue Technology for Metro Bogie Bolster
- Electric Drive for Locomotives Issue 1, Pages: 84(2018)
- 作者机构：
  
  1. 中车唐山机车车辆有限公司技术研究中心,河北,唐山,063035
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2018.01.019
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SUN Huidong, GAO Xiaoxia, GAO Feng, et al. Research on Anti-fatigue Technology for Metro Bogie Bolster. [J]. Electric Drive for Locomotives (1):84(2018)
DOI：

SUN Huidong, GAO Xiaoxia, GAO Feng, et al. Research on Anti-fatigue Technology for Metro Bogie Bolster. [J]. Electric Drive for Locomotives (1):84(2018) DOI： 10.13890/j.issn.1000-128x.2018.01.019.

摘要

基于转向架承载特征，确定了摇枕结构疲劳强度分析载荷，获得了结构在各计算工况下的应力分布，计算焊缝坐标系下的应力分量。根据DVS 1612 标准提供的方法，确定了各应力分量的材料利用度和综合材料利用度，评估了摇枕结构的疲劳强度。分析结果表明，横向止挡座与摇枕下盖板间焊缝的疲劳强度主要受垂直于焊缝方向的应力影响，其余应力分量对结构疲劳强度的影响较小。结构强度试验验证了抗疲劳设计方法的有效性。

Abstract

The loads for bolster fatigue strength analysis were determined based on the load bearing characteristic. The structural stress distribution under each load case was obtained and the stress component to the weld coordinate system were calculated. According to the standard DVS 1612, the bolster fatigue strength was estimated on the basis of the degree of utilization for each stress component and the composition value. The results showed that the stress transverse to the weld has a major effect on the bolster fatigue strength and there is slight influence of the other stress component on it. Structure strength test verified the effectiveness of the antifatigue technology.

关键词

摇枕转向架抗疲劳设计疲劳试验地铁车辆

Keywords

bolsterbogieanti-fatigue technologyfatigue testmetro vehicle

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