-
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。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.
-
Key words:
- automobile engineering /
- permanent magnet retarder /
- braking torque /
- computation method
-
表 1 转子鼓参数
Table 1. Parameters of rotor
项目 物性 电导率/ (S·m-1) 相对磁导率 热传导系数/[W· (m·K)-1] 热扩散率/ (m2·s-1) 比热容/[J· (kg·K)-1] 密度/ (kg·m-3) 大小 6.0×106 600 54.7 23.1×10-6 574 7870 
下载: 导出CSV
-
[1] 马建, 陈荫三, 余强, 等. 缓行器对汽车制动稳定性影响评价[J]. 交通运输工程学报, 2002, 2(1): 105-109. doi: 10.3321/j.issn:1671-1637.2002.01.023Ma Jian, Chen Yin-san, Yu Qiang, et al. Experiment research on continuous brake of passenger car[J]. Journal of Traffic and Transportation Engineering, 2002, 2(1): 105-109. (in Chinese) doi: 10.3321/j.issn:1671-1637.2002.01.023 [2] 余强, 陈荫三, 马建, 等. 客车持续制动性能试验研究[J]. 中国公路学报, 1999, 12(4): 110-113. doi: 10.3321/j.issn:1001-7372.1999.04.020Yu Qiang, Chen Yin-san, Ma Jian, et al. Experiment research on continuous brake of passenger car[J]. China Journal of Highway and Transport, 1999, 12(4): 110-113. (in Chinese) doi: 10.3321/j.issn:1001-7372.1999.04.020 [3] 朱宁, 王永华. 轻型永久磁铁式汽车缓速器[J]. 客车技术与研究, 2002, 24(4): 19-20. doi: 10.3969/j.issn.1006-3331.2002.04.008Zhu Ning, Wang Yong-hua. Permanent magnet type retarder[J]. Bus Technology and Research, 2002, 24(4): 19-20. (in Chinese) doi: 10.3969/j.issn.1006-3331.2002.04.008 [4] Venkataratna M K. Analysis of eddy-current brakes with nonmagnetic rotors[J]. IEEE Process, 1977, 124(1): 19-25. [5] 衣丰艳, 何仁, 刘成晔, 等. 车用电涡流缓速器三维有限元分析[J]. 交通运输工程学报, 2004, 4(2): 30-35. http://transport.chd.edu.cn/article/id/200402013Yi Feng-yan, He Ren, Liu Cheng-ye, et al. 3-D finite element analysis of eddy current retade[J]. Journal of Traffic and Transportation Engineering, 2004, 4(2): 30-35. (in Chinese) http://transport.chd.edu.cn/article/id/200402013 [6] 正田英介, 高木正藏. 电磁学[M]. 北京: 科学出版社, 2001. [7] Sakamoto H, Araki K, Ishida A, et al. Design of permanentmagnet type compact RCB retarder[J]. SAE Paper 973228: 508-513. [8] Burais N, Foggia A, Nicolas A, et al. Numerical solution of eddy currents problems including moving conducting parts[J]. IEEE Transactions on Magnetics, 1984, 20(5): 1995-1997. [9] Marchal Y, Meunier G. Computation of 2-D and 3-D eddy currents in moving conductors of electromagnetic retarders[J]. IEEE Transactions on Magnetics, 1990, 26(5): 2 382-2 384. [10] Preis B K. On the use of magnetic vector potential in the finite element analysis of three-dimensional eddy currents[J]. IEEE Transportation Magnetics, 1978, 25(4): 1359-1365. -
点击查看大图
图(7) / 表(1)
计量
- 文章访问数: 307
- HTML全文浏览量: 133
- PDF下载量: 513
- 被引次数: 0
