高速列车座椅疲劳可靠性分析  

Fatigue Reliability Analysis of High-speed Train Seats

作　　者：杨福芹[1] 孙琳琳[1] 张则荣[1] 蒋典兵 YANG Fuqin;SUN Linlin;ZHANG Zerong;JIANG Dianbing(College of Electromechanical Engineering,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266061

出　　处：《青岛科技大学学报（自然科学版）》2019年第1期105-110,共6页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：山东省自然科学基金项目(ZR2015EM037);山东省重点研发计划项目(2018GGX103015)

摘　　要：以高速列车座椅为研究对象,使用有限元软件ANSYS Workbench,结合IEC61373-1999标准中的功率谱密度函数对座椅进行随机振动数值仿真分析,选择座椅材料的P-S-N曲线及相关参数数据,针对不同设计尺寸下的座椅结构,采用Miner线性累积损伤理论分别进行累积损伤疲劳寿命计算。在电动振动试验台上对座椅进行模拟长寿命试验,仿真计算结果和试验结果具有良好的一致性,验证了疲劳寿命仿真分析的有效性。The random vibration numerical simulation analysis of the seat in a high-speed train was carried out by means of the finite element software ANSYS Workbench and power spectral density function in IEC61373-1999.On the base of the P-S-N curve of the seat material and its relevant parameter data being determined,the cumulative damage fatigue lives of the seats with different sizes were calculated respectively by Miner linear cumulative damage theory.Further,the seat was subjected to simulated long life test on the electric vibration test stand.The better consistency of the simulation results and test results verifies that the fatigue life simulation method of the seat in a high-speed train is effective.

关 键 词：高速列车座椅 随机振动 Miner线性累积损伤理论 模拟长寿命试验 

分 类 号：U260.14[机械工程—车辆工程]