摘要
为了实现微型电动车轮毂电机设计小尺度化,提高驻车制动灵敏性,提出了一种嵌入式电磁离合器失电制动的新结构,并进行了优化和动态分析。基于遗传算法,对该电磁离合器结构参数、电磁吸力进行了优化分析,优化得到的吸力比优化前的吸力增加了27.6N;基于有限元方法,对该电磁离合器的磁场分布、电流和电磁吸力、衔铁位移随时间变化等动态特性进行了精确计算分析。结果表明,采用轮毂电机嵌入式电磁离合器的电磁吸力和动态响应时间能够满足微型电动车驻车制动要求。
To reduce the size of wheel motor of micro electric cars and improve the sensitivity of parking brake system ,a new structure using electromagnetic clutch embedded in w heel motor to brake in lose electric is designed ,and the electromagnetic clutch is optimized and dynamically analyzed .Based on genetic algorithm ,electromagnetic clutch structure parameters are designed ,and electromagnetic attraction force is optimized .Optimization results show electromagnetic attraction force increases by 27 .6 N .Based on the finite element method ,the current curve ,suction curve and displacement curve are analyzed .T he results show electromagnetic attraction force and dynamic response time both meet the requirement of parking brake of micro electric cars .
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第5期1-7,共7页
Journal of Chongqing University
基金
国家自然科学基金资助项目(51275542)
关键词
电磁离合器
遗传算法
有限元
动态分析
electromagnetic clutch
genetic algorithm
FEM
dynamic analysis
