大支承力径向电磁轴承结构设计及试验研究  

Structural Design and Experimental Study of Radial Electromagnetic Bearings with Large Supporting Force

作　　者：任正义[1] 李乃安 REN Zhengyi;LI Naian(National Experimental Demonstration Center of Engineering Training,Harbin Engineering University,Harbin 150001,China;HE Harbin Power Plant Valve Co.,Ltd.,Harbin 150060,China)

机构地区：[1]工程训练国家级试验示范中心(哈尔滨工程大学),哈尔滨150001 [2]哈电集团哈尔滨电站阀门有限公司,哈尔滨150060

出　　处：《轴承》2018年第4期39-44,共6页Bearing

基　　金：国家"八六三"计划(2013AA050802)

摘　　要：为实现电磁轴承在重载工况下更好的悬浮效果,对径向电磁轴承提出了大支承力的要求,要求在绕组中加载大电流时磁场分布保持均匀,以保证在不同气隙下电流与力的近似线性化。设计了E形径向电磁轴承结构,利用ANSYS Maxwell,以最大承载力为目标对磁场分布进行分析,并且通过变换轴承定子气隙参数,测试出电流变化而产生的不同电磁力,验证了径向电磁轴承支承性能。In order to realize better suspension effect under heavy load,the large supporting force of radial electromagnetic bearings is required,which requires uniform magnetic field distribution when current is loaded in winding to ensure approximate linearization between force and current under different air gaps.The E-shaped structure of radial electromagnetic bearings is designed.Taking the maximum bearing capacity as the goal,the distribution of magnetic field is analyzed by ANSYS Maxwell.The different electromagnetic forces produced by variation of current are tested through transformation of air gap parameters of bearing stator.The supporting performance of radial electromagnetic bearings is verified.

关 键 词：径向电磁轴承 结构设计 有限元分析 支承性能 

分 类 号：TH133.31[机械工程—机械制造及自动化] TM15[电气工程—电工理论与新技术]