摘 要：针对某车型车身控制模块（BCM）支架的振动开裂问题，建立BCM支架有限元模型进行随机振动疲劳分析。分析结果与随机振动试验开裂位置吻合，验证了BCMI支架随机振动分析的有效性。最后，对BCM支架进行了优化，效果良好。
关键词：车身控制模块；有限元模型；随机振动；结构优化
中图分类号：U463.83+4 文献标志码：A 文章编号：1006-3331（2024）04-0039-05
Prediction of Random Vibration Fatigue Life of BCM Bracket Based on Frequency Response Analysis
DENG Saibang,LIU Xiangzheng,JIANG Yejie,QIAN Yinchao
Abstract: Aiming at the vibration cracking problem of a vehicle BCM bracket, a finite element model of the BCM bracket is established to do the random vibration fatigue analysis. The analysis results are consistent with the cracking position of the random vibration test, which verifies the effectiveness of the BCM bracket's random vibration fatigue analysis. Lastly, the structure of the BCM bracket is optimized,which effect is good.
Key words: body control module; finite element model; random vibration; structure optimization
