基于结构拓扑优化的轻量化汽车尾门设计

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摘 要：本文针对某款电动汽车尾门，将钣金材料替换为复合材料，并对复合材料尾门结构进行优化设计，最大的实现汽车尾门的轻量化。首先简单介绍了拓扑优化理论和方法，然后对比了钣金材料与复合材料的重要性能，接着利用OptiStruct软件对塑料尾门进行有限元分析，并进行性能和重量的优化设计。

关键词：掀背尾门 拓扑优化 OptiStruct

Design of Lightweight Automobile Tailgate based on Structural Topology Optimization

Xie Xinsheng，Liu Zhenpeng，Chen Bangdong

Abstract：This paper replaces sheet metal materials with composite materials for a certain electric vehicle tailgate， and optimizes the design of the composite tailgate structure to maximize the lightweight of the tailgate. Firstly， the theory and method of topology optimization are briefly introduced， and then the important properties of sheet metal materials and composite materials are compared， and then the finite element analysis of the plastic tailgate is carried out by OptiStruct software， and the optimization design of performance and weight is carried out.

Key words：hatchback tailgate， topology optimization， OptiStruct

1 引言

随着汽车工业的快速发展，能源问题和排放问题也日益凸显。（剩余3643字）