氢燃料电池客车车架多工况疲劳可靠性分析  

Analysis of Fatigue Reliability of Hydrogen Fuel Cell Bus Frame under Multiple Working Conditions

作　　者：黄妮 冯燕 戴作强[1] 张志超 杜光超 HUANG Ni;FENG Yan;DAI Zuoqiang;ZHANG Zhichao;DU Guangchao(School of Electromechanic Engineering, Qingdao University, Qingdao 266071, China)

机构地区：[1]青岛大学机电工程学院

出　　处：《机械制造与自动化》2019年第5期17-21,共5页Machine Building & Automation

基　　金：国家科技支撑计划(80114020168)

摘　　要：以氢燃料电池客车车架为研究对象,首先应用HyperWorks建立12m氢燃料电池客车车架的有限元模型,对车架的满载弯曲工况、扭转工况和急转弯工况进行静强度分析。然后根据车架静强度分析结果,利用nCodeDesign-Life建立车架疲劳分析五框图,定义载荷谱和材料疲劳特性参数。最后采用S-N静态疲劳设计方法对车架进行多工况疲劳可靠性分析。结果表明,在这3种工况下车架的疲劳可靠性均满足安全要求。This paper takes the hydrogen fuel cell bus frame as object of study, then, establishes the finite element model of the 12 meter hydrogen fuel cell bus frame by HyperWorks, and analyzes its static strength under the full load bending working condition, torsional working condition and abrupt-turning working condition. According to the results of the analysis, five block diagrams of the fatigue analysis are established by nCode Design-Life, and the load spectrum and material fatigue characteristic parameters are defined. And then, the fatigue reliability of the frame under multiple working conditions is analyzed by using the S-N static fatigue design method. The results show that the fatigue reliability only under these three working conditions meets the safety requirements.

关 键 词：氢燃料电池客车车架 HYPERWORKS nCodeDesign-Life 疲劳可靠性分析 有限元 

分 类 号：U463.32[机械工程—车辆工程]