摘要
为了改进电池包箱体结构设计存在的不足,建立了细致的电池包外壳体有限元模型,简化了内部电芯、内部热管理模组和电子元器件,以HyperMesh结合OptiStruct的方式分析了电池包的常见静力学工况、模态,再结合LS-DYNA分析了挤压工况;考察了电池包安全性,得出电池包结构刚度和强度偏低,并对上盖进行形貌优化,经过多次迭代优化,在原有结构性能基础上,有效提升了其刚度的性能表现。
In order to improve the structural design of the battery pack box,this paper established a detailed finite element model of the outer shell of the battery pack,simplified the internal electric core,internal thermal management module and electronic components,analyzed the common static working conditions and modes of the battery pack by HyperMesh combining with optimization,and analyzed the extrusion working conditions combined with LS-DYNA,inspected the safety of the battery pack,and concluded that the structural stiffness and strength of the battery pack were low.The shape of the upper cover was optimized.After several iterations of optimization,the performance of its stiffness was effectively improved on the basis of the original structural performance.
作者
倪洋溢
王浩源
NI Yangyi;WANG Haoyuan(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《农业装备与车辆工程》
2023年第5期161-165,168,共6页
Agricultural Equipment & Vehicle Engineering
关键词
动力电池包
模态
挤压
刚度
形貌优化
power battery pack
modal
extrusion
stiffness
topography optimization
