全承载式客车车身结构轻量化设计  

Lightweight Design of The Monocoque Body Structure

作　　者：王思祖 黄鼎友[1] 曹佳[1] 任明辉[1] 

机构地区：[1]江苏大学汽车与交通工程学院,江苏镇江212013

出　　处：《机械设计与制造》2014年第10期73-75,共3页Machinery Design & Manufacture

摘　　要：以某全承载式客车车身结构为基础车型,构建拓扑优化模型,把车身侧围及顶盖部分区域作为设计空间;以质量分数为约束条件,加权柔度最小为目标;选取最为常见的四种极限工况,通过Hyperwork软件中的OptiStruct进行计算,经过若干论迭代后得到拓扑优化的结果。根据拓扑优化结果,结合工程要求及规范和客车车身应具备的整体性能,指导客车车身设计,在保证车身结构性能要求的前提下,合理布置材料,提高材料的利用率,减少冗余,达到车身结构轻量化的目的。Takes the structure of a fuUy monocoque bus body as base models and builds a topology optimization model, and takes the side of the bus body and the top part of the region as the design space, and mass fraction as constraints, weights minimum flexibility as the goal; selectes four of the most common extreme working conditions, calculates and obtains the results of the topological optimization after several iterations by OptiStruct of Hyperwork software. According to the topology optimization results, combined with engineering requirements and the overall performance of the bus body, directing body design, decorates material reasonably, improves material utilization and reduces the redundancy to achieve the purpose of lightweight body structure in the premise of ensure the performance requirement of the bus body.

关 键 词：有限元 全承载式 拓扑优化 轻量化 

分 类 号：TH16[机械工程—机械制造及自动化] TP391[自动化与计算机技术—计算机应用技术]