吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (4): 1056-1062.doi: 10.13229/j.cnki.jdxbgxb201504005

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永磁式缓速器的制动力矩分级结构设计

何仁, 王晶, 胡东海   

  1. 江苏大学 汽车与交通工程学院,江苏 镇江 212013
  • 收稿日期:2013-11-28 出版日期:2015-07-01 发布日期:2015-07-01
  • 作者简介:何仁(1962-)男,教授,博士生导师.研究方向:汽车机电一体化技术.E-mail:heren@mail.ujs.edu.cn
  • 基金资助:
    2011年江苏省苏北科技发展计划项目(BC2011446)

Design of braking torque graded structures of permanent magnet retarder

HE Ren, WANG Jing, HU Dong-hai   

  1. School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013,China
  • Received:2013-11-28 Online:2015-07-01 Published:2015-07-01

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摘要： 为分析永磁式缓速器制动力矩的影响因素,设计了制动力矩可以分级的永磁式缓速器,运用解析法对永磁式缓速器的气隙磁场建立数学模型,通过分离变量法结合边界条件,获得了气隙磁通密度的表达式。再运用源和场理论推导出适合工程应用的永磁式缓速器制动力矩计算公式。在此基础上分析了磁极对数、永磁体周向宽度、永磁体轴向长度和气隙大小对气隙磁场和制动力矩的影响,并分别根据这4种参数,设计了4种可行的制动力矩分级结构。

关键词: 车辆工程, 缓速器, 制动力矩分级, 气隙磁通密度, 结构设计

Abstract: To design the braking torque graded permanent magnet retarder, the rules of the factors that influence the braking torque retarder must be understood. In this paper, the mathematical model of the air-gap of magnetic field was established by means of analytic method. Using variable separation method and boundary conditions, the analytical expression of the magnetic induction intensity of the air-gap was obtained. According to the source and field theory, the computation model of braking torque, applicable to engineering application, was derived. The impacts of the number of magnetic pole pairs, the perimetric width and axial length of the permanent magnet, and the air-gap on the magnetic induction intensity and on the braking torque were analyzed based on the computation model. Based on the four parameters, four types of graded braking torque structures of the permanent magnet retarder were designed.

Key words: vehicle engineering, retarder, braking torque graded, magnetic induction intensity, structure design

中图分类号: 

  • U463.5
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