基于侧翻安全性验证的某型大客车骨架轻量化研究

摘要

Taking a 12-metre bus as the research object, it establishes the finite element model of the bus body skeleton in Hyperworks, uses the optimization module of Optistruct to optimize the thickness of the body pipes, obtains the goal of lightweight. In order to verify the reliability of the optimized body skeleton, it applies Ls-Dyna to analyze the rollover safety of the lightweight body, and the results meet the requirements of Chinese standard.%以某公司开发的一款12m长途客车为研究对象,在Hyperworks软件中建立车身骨架有限元模型,然后运用Optistruct自带的优化模块对车身杆件进行壁厚优化,从而实现轻量化的目标.为验证优化结果的可靠性,用Ls-Dyna对轻量化后的的车身进行侧翻安全性分析,结果满足国标的要求.