摘要
基于随机振动理论与频域疲劳分析方法,利用有限元软件构建动力电池包随机振动疲劳失效分析模型并计算结构的疲劳寿命,分析结果与试验结果完全吻合。分析结构的失效机理并进行结构设计改进,试验结果表明,改进方案的疲劳寿命得到显著的提高,具有较好的抗振耐久性能。
Based on random vibration theory and fatigue analysis method in frequency domain,with finite element software to construct the battery pack failure model of random vibration fatigue analysis and to calculate the fatigue life of the structure,the analysis results are in good agreement with the test results.Analyze the failure mechanism of the structure and carry out structural design improvement,the simulation and test results show that the fatigue life of the improvement scheme is significantly improved,and it has better anti vibration durability.
作者
戴江梁
熊飞
刘静
陈琛
陈虎
杨越东
DAI JiangLiang;XIONG Fei;LIU Jing;CHEN Chen;CHEN Hu;YANG YueDong(Guangzhou Automobile Group Co.,Ltd.,Automotive Engineering Institute,Guangzhou 511434,China)
出处
《机械强度》
CAS
CSCD
北大核心
2020年第5期1266-1270,共5页
Journal of Mechanical Strength
关键词
电池包
随机振动
PSD谱
疲劳寿命
设计改进
Battery pack
Random vibration
PSD spectrum
Fatigue life
Design improvement
