摘要
文章提出采用基于IEC 61373的转向架上附属装置安装支架强度评估方法,并以一种机车过分相装置支架为例介绍了该方法的应用;对支架进行响应谱分析,累积疲劳损伤计算,并基于分析结果进行结构优化。评估结果表明,优化后的支架1阶模态频率明显提高,其疲劳寿命满足IEC 61373的长寿命设计要求。
This paper proposes a strength evaluation method for the installation bracket of auxiliary devices on bogies based on IEC 61373,and presents the application of this method taking a bracket for locomotive neutral-section passing device as an example.By conducting response spectrum analysis on the bracket and calculating cumulative fatigue damage,the structure is optimized based on the analysis results.The evaluation results show that the first-order modal frequency of the optimized bracket is significantly increased,and its fatigue life meets the long-life design requirements of IEC 61373.
作者
李佳睿
陈姝枚
刘余龙
陈晓峰
赵彬娜
LI Jiarui;CHEN Shumei;LIU Yulong;CHEN Xiaofeng;ZHAO Binna(CRRC Zhuzhou Locomotive Co.,Ltd.,Zhuzhou 412001,China;Hunan Bogie Engineering Research Center,Zhuzhou 412001,China)
出处
《电力机车与城轨车辆》
2023年第3期88-93,107,共7页
Electric Locomotives & Mass Transit Vehicles
基金
中国中车股份有限公司科技研究开发计划(2019CIA)。
关键词
支架
转向架
随机振动
疲劳损伤
模态分析
bracket
bogie
random vibration
fatigue damage
modal analysis
