基于轻量化设计方法的某车型后牵引装置结构的优化设计

The Optimization Design of Vehicle Rear Traction Device Based on Lightweight Design Methed

车身牵引装置是一种安全保护装置,方便车体进入危险环境损坏后,借助外力走出困境。本文先介绍轻量化设计基本方法,然后以某车型开发为例,在满足车身刚度和模态基本不变的前提下,以车身后牵引装置重量减轻为目标,优化其结构。对优化后的结构进行强度和后部碰撞的模拟计算和对比分析,以验证优化设计结果的可行性,达到优化设计的目的。

Traction device is a kind of safety protection devices for getting the car out of dangerous situation.This paper first introduced the basic methods of lightweight design, and then taked an example of vehicle development, optimizing the structure of rear traction device on one vehicle, lightening the weight as the objective and remaining the body stiffness and modal unchanged.Accroding to the simulation calculation and comparison analysis of the structure strength and the rear collision, verified the validity of the optimization design and achieved the purpose of lightweight design.