摘要
轮毂电机为电动汽车驱动系统核心部件,其结构、强度特性对整车运行稳定性与可靠性具有重要影响,直接决定整车动力性与安全性。根据某电动汽车轮毂电机壳体结构参数、工况及结构特征,建立壳体结构三维力学模型。在对壳体结构系统进行模态分析与静力学分析的基础上,以质量优化为目标,对壳体结构非承载区域进行拓扑优化与结构设计。为验证分析结果,对优化后壳体结构进行模态及静力学分析。结果表明,壳体结构系统质量降低5.5%,系统部分固有频率提高,轮胎轮毂安装螺栓根部局部应力集中得到改善。
The wheel hub motor is the core component in the drive system of electric vehicles;its structure and strength characteristics have important influence on the operating stability and reliability of electric vehicles,and power and safety of entire vehicle are impacted directly.In this article,a three-dimensional mechanical model of the shell structure is se tup according to the structural parameters,working conditions and structural characteristics of the hub motor of an electric vehicle.With the help of the modal analysis and static analysis on the shell structure system,the goal of quality optimization is identified,and the unloaded areas of the shell structure are topologically optimized and structural designed.In order to verify the analytical results,the modal and static analysis on the optimized shell structure is carried out.The results show that the quality of the shell structure system reduces by 5.5%;some natural frequencies of the system increase;local stress concentration at the root for the mounting bolt of the tire hub improves.
作者
翟洪飞
侯俊剑
房占鹏
王艳
姚雷
ZHAI Hong-fei;HOU Jun-jian;FANG Zhan-peng;WANG Yan;YAO Lei(College of Mechanical and Electrical Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002;New Energy Vehicle Lightweight Design and Manufacturing Engineering Research Center of Henan Province,Zhengzhou 450002)
出处
《机械设计》
CSCD
北大核心
2022年第1期105-110,共6页
Journal of Machine Design
基金
国家自然科学基金(51805491)
河南省高等学校重点科研项目(19A460032)
郑州轻工业大学博士基金(2017BSJJ016)
河南省科技攻关项目(212102210361)。
关键词
轻量化
壳体结构
拓扑优化
轮毂电机
lightweight
shell structure
topology optimization
hub motor
