某小型客车车身骨架轻量化综合优化设计  

Comprehensive Optimization Design of Body Framework Lightweight for a Small-sized Bus

作　　者：于保君 何洪军 肖永富 杨少明 孙立伟 董健 YU Baojun;HE Hongjun;XIAO Yongfu;YANG Shaoming;SUN Liwei;DONG Jian(Research and Development Institute of China First Automobile Co.,Ltd.,State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise&Safety Control,Changchun 130012,China)

机构地区：[1]中国第一汽车股份有限公司研发总院,汽车振动噪声与安全控制综合技术国家重点实验室,长春130012

出　　处：《客车技术与研究》2021年第3期22-25,共4页Bus & Coach Technology and Research

摘　　要：建立某小型客车骨架的隐式参数化有限元模型,以骨架扭转刚度、弯曲刚度、扭转模态及强度为约束条件,重量最低为目标,选取侧围结构进行局部拓扑优化,然后对骨架型材的截面和壁厚进行尺寸优化。最终,车身骨架实现减重26.7 kg。The authors establish a finite element model with implicit parameterization of a small-sized bus body framework.They first use the local topology optimization to the side body structure,then use the size optimization to the section and thickness of the framework section tubes with the framework torsional stiffness,bending stiffness,torsional mode and strength as the constraint conditions and with the minimum weight as the object.Finally,the weight reduction of the body framework is 26.7 kg.

关 键 词：小型客车 车身骨架 参数化模型 综合优化 

分 类 号：U462.2[机械工程—车辆工程] U463.831[交通运输工程—载运工具运用工程]