摘要
针对某款电动环卫车车架进行轻量化研究。以减轻车架质量为目标,应用拓扑优化及有限元法进行优化。首先对车架进行了考虑碰撞荷载的多目标拓扑优化,获得车架在碰撞荷载下的最佳结构分布,利用CATIA对改进方案进行模型重建,改进后车架的总质量降低了3.3%。然后基于组合优化算法,以车架矩形梁截面参数为设计变量对车架进行了轻量化研究,优化后车架的总质量较初始值降低了13.7%。该研究方法提高了优化的效率和精度,丰富了车架设计优化方法。
Aiming at the examination on the lightweight of the chassis of electric sanitation car, topological optimization and finite element method were applied for optimization targeting the reduction of the chassis mass. Firstly, the＂ multi-objective topological optimization for the chassis was conducted in consideration of the collision load to obtain the optimal structure distribution of the chassis under collision load, CATIA was used to reconstruct the improved scheme and the total mass of the improved frame was reduced by 3.3%. Then, based on the combined optimization algorithm, the light weight design for chassis was examined by taking the sectional parameter of the rectangular beam of the chassis as the the variable for design,the total mass of the chassis after optimization was reduced by 13.7% compared with the initial value. This research technique could improve the efficiency and precision during optimization and could enrich the design ＆ optimization method for chassis.
出处
《机械制造》
2017年第1期36-39,92,共5页
Machinery
基金
国家高技术研究计划项目(编号:2014AA052303)
山东省科技发展计划项目(编号:2014ZZCX05501
2014GGX103044)
青岛市战略性新兴产业培育计划项目(编号:14-8-1-2-gx)
关键词
轻量化
碰撞荷载
车架
多目标拓扑优化
Lightweight Collision Load Chassis Multiple-objective Topological Optimization
