摘要
本文针对某混动车型在侧面柱碰分析中出现电池包变形侵入较大,碰撞中存在起火爆炸的风险问题,对其产生原因进行分析,并提出解决问题的优化方案,通过进行整车碰撞仿真分析和试验验证,优化后电池包的塑性应变和侵入明显改善,塑性应变从原来的55%减小到22%,模组受力由27KN减小到1.1KN,电池包模组受挤压变形起火风险基本消除。经试验验证,电池包内部模组未受到变形挤压,所提方案合理。
The question was raised about the big battery pack deformation intrusion and the risk of fire or explosion during side pole impact.Its causes were analyzed and optimization scheme was raised.The crash model was constructed and computed by hypermesh and LS-Dyna softs.Optimization result was validated by simulation analysis and experimental,the optimized battery pack plastic strain and intrusion were decreased,plastic strain decreases from 55% to 22%,module force by 27 KN reduce to 1.1 KN,battery pack by extrusion deformation of fire risk basically eliminated.Verified by test,the battery pack not subjected to internal module extrusion deformation,the proposed scheme is reasonable.
出处
《电池工业》
CAS
2017年第5期1-4,8,共5页
Chinese Battery Industry
关键词
侧面柱碰
电池包
模组
Side pole impact
Battery pack
Module
