Lightweight Design of BIW Based on Stiffness and Mode
作者单位：Brilliance Automobile Engineering Research Institute
会议名称：《2015中国汽车工程学会年会》
会议日期：2015年
学科分类：082304[工学-载运工具运用工程] 08[工学] 080204[工学-车辆工程] 0802[工学-机械工程] 0823[工学-交通运输工程]
关 键 词：lightweight stiffness mode optimization
摘 要：In this paper,the BIW of a domestic car establishes a finite element analysis model,with the stiffness and modal of BIW as the constraints,the thickness,size and material of the BIW structure parts are optimized to achieve lightweight *** optimizing and analyzing examples,optimization results are verified through experimental comparison,the experiment results show that quality of BIW is decreased by 10.37% after optimization,while the stiffness and modal exceed the production target *** this method,quality of BIW realizes the purpose of lightweight,for the design and production of car body provides a theoretical basis and reference instance.