Fatigue Reliability Optimization for Three-Axle Bogie Frame Based on Response Surface Method

Xinli HAN; Yuehua GAO

doi:10.13890/j.issn.1000-128x.2021.03.105

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Fatigue Reliability Optimization for Three-Axle Bogie Frame Based on Response Surface Method

Reliability Engineering | 更新时间：2021-12-09

- Fatigue Reliability Optimization for Three-Axle Bogie Frame Based on Response Surface Method
- Electric Drive for Locomotives Issue 3, Pages: 152-156(2021)
- 作者机构：
  
  1.大连交通大学　机车车辆工程学院，辽宁　大连　116028
  2.南昌航空大学　航空制造工程学院，江西　南昌　330063
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128x.2021.03.105
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Xinli HAN, Yuehua GAO. Fatigue Reliability Optimization for Three-Axle Bogie Frame Based on Response Surface Method. [J]. Electric Drive for Locomotives (3):152-156(2021)
DOI：

Xinli HAN, Yuehua GAO. Fatigue Reliability Optimization for Three-Axle Bogie Frame Based on Response Surface Method. [J]. Electric Drive for Locomotives (3):152-156(2021) DOI： 10.13890/j.issn.1000-128x.2021.03.105.

摘要

以三轴转向架构架为研究对象，对其进行了结构强度与关键焊缝疲劳寿命可靠性分析，在此基础上以主要壁板厚度为变量，考虑强度和疲劳寿命可靠度约束建立转向架构架抗疲劳轻量化模型，并采用缩小空间响应面近似优化法进行求解。优化后构架减重约4.3%，将不确定性因素考虑进结构优化过程中，优化结果更加合理。

Abstract

The three-axle bogie frame was taken as the research object, the reliability analysis for structural strength and fatigue life of the key welds were carried out. Based on the thickness variables of key plates, the anti-fatigue lightweight model for the bogie frame was proposed with strength and fatigue life constraints. This optimization model was solved by the reduced response surface method. The optimization results showed that the total mass was reduced by 4.3%. This optimization result was more reasonable by consideration of uncertainties, which provided a reference for structure optimization.

关键词

转向架构架疲劳寿命可靠性分析响应面法结构优化有限元分析

Keywords

bogie framefatigue lifereliability analysisresponse surface methodologystructure optimizationFEA

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