摘要
径向磁悬浮轴承工作时会产生铜损和铁损,损耗发热进而导致设备温升,温度过高会影响旋转机械转子系统的动态性能,降低其可靠性。针对以上问题,采用磁热耦合的分析方法,将瞬态电磁场分析的损耗结果导入到径向磁悬浮轴承热仿真模型,并进行温度场求解;然后通过搭建实验平台,测试磁悬浮轴承的温升,并将仿真与实验数据对比。结果表明该方法有效,为磁悬浮轴承的温升分析和控制提供一定参考。
The radial magnetic bearing will cause copper loss and iron loss when working. Those energy losses will generate heat thereby resulting in overheating of the equipment and reducing the dynamic performance of the rotating machinery system. This work adopts the analysis method of magnetic-thermal coupling, imports the loss results of transient electromagnetic field analysis into the thermal simulation model of radial magnetic bearing, and solves the temperature field. An experimental platform to test the temperature of the magnetic bearing has also been built. Through comparing the simulation and experimental data, the results demonstrate the effectiveness of the developed method, which provides a practical reference for analyzing the temperature and controlling the magnetic bearing.
作者
方奇灏
FANG Qihao(School of Mechanical and Electronic Engineering,Wuhan University of Technology,Wuhan 430070,China)
基金
国家重点研发计划资助项目(2018YFB2000103)
关键词
径向磁悬浮轴承
损耗
磁热耦合
温度场
radial magnetic bearing
energy loss
magnetic-thermal coupling
temperature gradient
