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西安科技大学 理学院, 陕西 西安 710054
程文杰(1982— ),男,湖北天门人,博士,副教授;研究方向为高速永磁电机设计;cwj20070807@163.com。
纸质出版日期:2023-04-15,
收稿日期:2022-03-08,
修回日期:2022-05-20,
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程文杰,路慧泽,肖玲等.高速磁场调制式磁齿轮流场及温度场分析[J].机械传动,2023,47(04):115-122.
Cheng Wenjie,Lu Huize,Xiao Ling,et al.Fluid Field and Temperature Field Analysis of High Speed Magnetic Field Modulated Gears[J].Journal of Mechanical Transmission,2023,47(04):115-122.
程文杰,路慧泽,肖玲等.高速磁场调制式磁齿轮流场及温度场分析[J].机械传动,2023,47(04):115-122. DOI: 10.16578/j.issn.1004.2539.2023.04.017.
Cheng Wenjie,Lu Huize,Xiao Ling,et al.Fluid Field and Temperature Field Analysis of High Speed Magnetic Field Modulated Gears[J].Journal of Mechanical Transmission,2023,47(04):115-122. DOI: 10.16578/j.issn.1004.2539.2023.04.017.
高速磁场调制式磁齿轮工作时,永磁体和调磁块中会产生较大的涡流损耗和风摩擦损耗。为了研究高速磁齿轮小间隙内的流场和温度场,以一台内转子转速为16 500 r/min,外转子转速为-3 000 r/min的磁齿轮为研究对象,针对磁齿轮小间隙,考虑自然对流换热和强迫风冷换热两种情况,采用计算流体动力学(CFD)方法进行了流场及温度场计算。结果表明,仅仅依靠自然对流换热,永磁体会因温度过高而失磁;引入强迫风冷后,永磁体温度能控制在402.98 K(129.83 ℃)以内;并给出了轴向风速为15~30 m/s时沿轴向分布的对流换热系数曲线。研究结果为磁场调制式磁齿轮的热设计提供了参考依据。
When a high speed magnetic field modulated gear is working
eddy current loss and wind friction loss will occur in permanent magnet and magnet block. In order to study the flow field and temperature field in small gaps of high speed magnetic gears
a magnetic gear with internal rotor speed of 16 500 r/min and external rotor speed of -3 000 r/min is taken as the research object. For the small gap of a magnetic gear
the flow field and temperature field calculation is carried out using computational fluid dynamics. It takes into account both natural convection and forced air cooling heat transfer. The results show that only by natural convection heat transfer
the permanent magnet will lose magnetism due to high temperature. When forced air cooling is introduced
the temperature of permanent magnet can be controlled within 402.98 K(129.83 ℃). The convective heat transfer coefficient curve along the axial distribution is given when the axial wind speed is 15~30 m/s. The research results provide reference for thermal design of magnetic field modulated gears.
磁场调制式磁齿轮计算流体动力学流场温度场热设计
Magnetic field modulated gearComputational fluid dynamicsFlow fieldTemperature fieldThermal design
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