径向磁液轴承的转子散热规律研究  

Research on the Radial Magnetic Fluid Bearing's Rotor Heat Dissipation Law

作　　者：陈丽文 赵建华[2] 赵计胜 吴晓晨 崔冰艳 杨中原 CHEN Liwen;ZHAO Jianhua;ZHAO Jisheng;WU Xiaochen;CUI Bingyan;YANG Zhongyuan(College of Mechanical Engineering,North China University of Science and Technology,Tangshan Hebei 063210,China;College of Mechanical Engineering,Yanshan University,Qinhuangdao Hebei 066000,China;Tangshan Engine Automobile Factory,Tangshan Hebei 063000,China;CCTEG Tangshan Research Institute,Tangshan Hebei 063000,China)

机构地区：[1]华北理工大学机械工程学院,河北唐山063210 [2]燕山大学机械工程学院,河北秦皇岛066000 [3]中车唐山机车车辆有限公司,河北唐山063000 [4]中煤科工集团唐山研究院有限公司,河北唐山063000

出　　处：《机床与液压》2023年第22期25-30,共6页Machine Tool & Hydraulics

基　　金：国家自然科学基金(52075468);河北省自然科学基金(E2020203052);华北理工大学重点科研项目(ZD-YG-202306-23);唐山市科技项目(23130201E)。

摘　　要：为了提升磁液轴承的稳定性以及使用寿命,建立磁液轴承的涡流损耗仿真模型,分析初始条件下磁液轴承的磁场、温度场及热变形的分布,利用Ansoft Maxwell软件仿真求解轴承转子产生的涡流损耗,基于多场耦合作用分析输入电流、转速、进油流量变化对导磁套涡流损耗及传热率的影响,探索转子散热规律的变化,并进行试验验证。试验结果表明:随着电流和转速的增加,进出油口温差逐渐增大,试验值与仿真值趋势一致,误差在可接受范围内,验证了仿真结果的可靠性。In order to improve the stability and service life of the magnetic fluid bearing,the eddy current loss simulation model of the magnetic fluid bearing was established,the distributions of the magnetic field,temperature field and thermal deformation of the magnetic fluid bearing under the initial conditions were analyzed.Maxwell software was used to simulate and solve the eddy current loss generated by the bearing rotor.The influences of changes in input current,speed,and inlet oil flow rate on the eddy current loss and heat transfer rate of the magnetic sleeve were analyzed based on multi-field coupling,and the change of the rotor heat dissipation law was explored,and experimental verification was conducted.The experimental results show that with the increase of current and speed,the temperature difference between inlet and outlet increases gradually.The trend of the experimental value and the simulation value is consistent,and the error is within an acceptable range,which verifies the reliability of the simulation results.

关 键 词：磁液轴承 涡流损耗 耦合传热 散热规律 

分 类 号：TH137.9[机械工程—机械制造及自动化]