基于刚度和强度性能的新能源城市客车车身轻量化研究  

Research on the Vehicle Body Structure Lightweight Based on Stiffness and Strength Performances for a New Energy City Bus

作　　者：林标华 LIN Biao-hua(Xiamen Golden Dragon Bus Co.,Ltd.,Fujian Provincial Key Laboratory of New EnergyAutomotive Company,Xiamen 361006,China)

机构地区：[1]厦门金龙旅行车有限公司,福建省新能源汽车企业重点实验室

出　　处：《汽车科技》2019年第3期87-91,共5页Auto Sci-Tech

摘　　要：建立12米城市客车骨架有限元模型,以刚度和强度性能为评价基础,结合拓扑优化和尺寸优化的方法,并考虑生产及工艺要求,对车身底骨架进行结构和尺寸优化设计。研究结果及实车制造表明,轻量化效果显著,结构安全可靠,同时刚度和强度性能得到提升。该优化设计结果为同类车型的轻量化优化设计提供参考。The finite element model for a bus body frame of an 12m city bus is built,based on Stiffness and Strength Performances,combining with the methods of topology optimization and size optimization,considering with the actual production and process requirements,then the structure and size of the body understructure are optimized.The results show that the effect of weight loss is remarkable,safe and reliable,at the same time,the Stiffness and Strength Performances of bus structure are greatly improved.The results also provide a reference for lightweight optimization design of similar vehicles.

关 键 词：新能源城市客车 车身骨架 轻量化 优化设计 

分 类 号：U463.822[机械工程—车辆工程]