关键词: 轻量化设计, 环境影响, 产品制造过程, 有限元分析方法

Abstract: Aiming at the problem that the recent lightweight design did not consider the effect on environmental burdens in manufacturing stage,which might increase environmental burdens in manufacturing stage and even offset the decrease of environmental burdens in design stage,an improved lightweight design method was proposed by considering the effect of lightweight design method on environmental burdens in manufacturing stage.Based on the finite element analysis,a mathematical model for product structure optimization was designed by taking weight and environmental burdens of products as objects and mechanical performance of products as constraints.Thus the environmental impacts were estimated from material stage and manufacturing stage,and the case study was used to show the feasibility of the proposed method.

Key words: lightweight design, environmental impact, product manufacturing process, finite element analysis