CRH5型高速动车组车轮轮辋疲劳寿命分析  

Fatigue Life Analysis for Wheel Rim of CRH5 Motor Train Unit

作　　者：张廷秀[1] 陈换过[1] 蔡丽[1] 张文[1] 陈培[1] 

机构地区：[1]浙江理工大学机械与自动控制学院,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2015年第6期824-828,共5页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家自然科学基金-高铁联合基金项目(U1234207);国家自然科学基金项目(51475432);浙江省省级国际科技合作专项计划项目(2013C24005);浙江省自然科学基金项目(LZ13E050003)

摘　　要：根据国内外车轮相关标准,采用基于有限元法的疲劳寿命分析方法分析了动车组车轮轮辋疲劳寿命。根据UIC510-5和BS EN13979标准,确定了车轮运行过程中的载荷工况,进而编制了动车组车轮在不同工况下的载荷谱。借助有限元软件分析了不同工况下动车组车轮的应力状态并获得了轮辋危险部位的应力谱,结合轮辋材料的S-N曲线和Miner法则对直道、弯道和道岔工况下车轮轮辋危险部位的疲劳寿命进行了估计。结果表明:道岔工况对轮辋危险部位寿命影响最为严重,而直道和弯道的影响相对较小。分析结果为确定车轮的安全检修周期提供了一定的理论依据,对高速动车组的安全运行有实际指导意义。This paper adopts fatigue life analysis based on finite element method to analyze fatigue life of wheel rim of motor train unit as per domestic and international wheel standards.The load cases of the wheel are determined as per UIC510-5and BS EN13979 standards,and then the load spectrum in different load cases is established.Stress state of wheels of motor train unit under different working conditions is analyzed with the help of finite element software,and the stress spectrum of the wheel rim is obtained.The fatigue life of wheel rim in different load cases is estimated by combining S-N curve of wheel rim material and Miner's rule.The results show that the fatigue life of wheel rim is most affected by working conditions of turnout junction,and the influence of straight road and winding road is small.The analysis result provides theoretical basis for security maintenance of motor train unit and also is valuable in practical safe operation of the train.

关 键 词：高速动车组 轮辋 载荷谱 有限元 疲劳寿命 

分 类 号：U270.12[机械工程—车辆工程]