摘要
以软件Ansys/Workbench为分析平台和利用有限元分析方法,针对某企业现有的某型号电动汽车电池箱结构,计算颠簸路面上急刹车和急拐弯两种工况下的电池箱的强度,并将某一节点等效应力值的有限元分析结果和理论计算结果进行对比,验证有限元分析模型的正确性。根据有限元分析结果,局部产生应力集中现象,整体应力有改进设计的余量,对结构应力集中处进行改进设计。利用软件Ansys/Workbench就该箱体各部件尺寸参数对箱体最大等效应力和重量的灵敏度进行分析,根据灵敏度分析结果选择设计变量,以箱体构件的最大应力为状态变量,以箱体总质量为目标函数,对该箱体进行轻量化处理。
A finite element intensity analysis was performed to calculate the intensity of battery box in two running conditions of sudden braking and turning on bumpy road by using software of Workbench as analysis platform and finite element analysis. According to the results of intensity analysis, local positions generate stress concentration. There is some margin from perspective of the overall stress. Improved design and lightweight handle the local parts of structure. Analyzed sensitivities of size parameters of the components on the maximum stress and the body＇ s gross mass by using Ansys/Workbench. Chose design variables due ＂to the sensitivity analysis results, used the maximum stress of the parts as the state variable and the body＇s gross mass as the objective function to optimize the body＇s gross mass.
出处
《机械强度》
CAS
CSCD
北大核心
2015年第2期312-316,共5页
Journal of Mechanical Strength
