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车用永磁式缓速器制动力矩的计算方法
引用本文:何仁,赵万忠,牛润新.车用永磁式缓速器制动力矩的计算方法[J].交通运输工程学报,2006,6(4):62-65.
作者姓名:何仁  赵万忠  牛润新
作者单位:江苏大学,江苏省汽车工程重点实验室,江苏,镇江,212013
摘    要:为了优化永磁式缓速器的结构参数和提高永磁式缓速器的制动性能,应用复矢量磁位方法,分析了缓速器内部的磁位分布,计算了转子鼓中的涡流损耗,推导了永磁式缓速器的制动力矩计算公式,以反映永磁式缓速器制动力矩与各设计参数之间的相互关系。复矢量计算方法的计算结果与缓速器台架试验结果比较和分析表明,试验值与理论值吻合较好,最大误差不大于6%,采用复矢量磁位计算方法计算永磁式缓速器制动力矩具有很好的逼近效果。

关 键 词:车辆工程  永磁式缓速器  制动力矩  计算方法
文章编号:1671-1637(2006)04-0062-04
收稿时间:2006-06-13
修稿时间:2006年6月13日

Braking torque computation method of permanent magnet retarder
He Ren,Zhao Wan-zhong,Niu Run-xin.Braking torque computation method of permanent magnet retarder[J].Journal of Traffic and Transportation Engineering,2006,6(4):62-65.
Authors:He Ren  Zhao Wan-zhong  Niu Run-xin
Institution:Jiangsu Province Key Laboratory of Automotive Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
Abstract:In order to optimize the design parameters,and improve the braking performance for permanent magnet retarder,its magnetization vector distribution was analyzed by complex vector method,its eddy loss was calculated in rotor,the computation formulae of its braking torque were derived in order to reflect the mutual relations among braking torque and different design parameters.The comparison of bench test result and computation result shows that the maximum error is less than 6%,so the computation formulae are feasible,and they are approximate to compute retarder braking torque.1 tab,7 figs,10 refs.
Keywords:automobile engineering  permanent magnet retarder  braking torque  computation method
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