摘要
以某铝合金白车身为研究对象,建立有限元分析模型。以车身结构关键零部件的厚度为设计变量,对白车身质量、模态频率、弯曲刚度、扭转刚度进行灵敏度分析。根据灵敏度分析结果,对以上结构性能灵敏度较低的部件进行轻量化、对结构性能影响较大的部件进行厚度优化。最终在保证铝合金白车身以上结构性能不降低的情况下,提出具有重要指导意义的轻量化方案,实现了满意的减重效果。
Taking an aluminum alloy BIW as the research object,a finite element analysis model is established.The sensitivity of BIW mass,modal frequency,bending stiffness,and torsional stiffness was analyzed regarding the thickness of key components of the body structure as a design variable.According to the results of sensitivity analysis,the components with lower structural performance sensitivity are reduced in weight,and the components making greater influence on structural performance are optimized for thickness.As a result,in the case of ensuring that the structural performance of the aluminum alloy BIW does not decrease,a constructive lightweight solution is proposed.The satisfactory weight reduction effect has been achieved.
作者
罗宾
马丽春
李金龙
LUO Bin;MA Li-chun;LI Jin-long(Liaoning Zhongwang Group Co.,Ltd.,Liaoyang 111003,China;School of Material Science and Engineer,Qingdao University,Qingdao 266071,China)
出处
《内燃机与配件》
2020年第8期13-15,共3页
Internal Combustion Engine & Parts
关键词
白车身
有限元
灵敏度分析
轻量化
BIW
finite element
sensitivity analysis
lightweight
作者简介
罗宾(1984-),男,吉林公主岭人,中级工程师,本科,研究方向为机械工程。
