摘要
针对密闭电动静液作动器(EHA)存在的发热和散热问题,进行了EHA传热与散热机理分析。采用CATIA建立了EHA三维CAD模型,导入ANSYS Workbench有限元CAE软件,对EHA主要发热源电机进行了热力学建模与仿真,得出电机的温度场热分布图。使用控制变量法,研究EHA工作频率和负载对电机生热的影响。结果表明,随着EHA工作频率的增加,电机的生热量逐渐变大,而且温度最高点有从转子区域转向定子区域的趋势;随着外部负载的增大,电机的生热量逐渐变大,电机内定子和转子的温度随之升高。
For existing heat and heat dissipation problems of closed Electro-Hydrostatic Actuator(EHA), heat transfer mechanism was analyzed. The 3D model of EHA transmission mechanism was established by CATIA software, and the model was imported into ANSYS Workbench to generate the temperature field simulation result of the main heat source motor in EHA. Using the control variable method, the effect of EHA’s operating frequency and load on the heat generation of the motor was studied. The results show that the heat generation of the motor increases with the increase of the operating frequency, and the highest temperature tends to shift from the rotor area to the stator area. With the increase of external load, the heat generated by the motor increases gradually, the temperature of stator and rotor in the motor rises accordingly.
作者
段嘉兴
来雨辰
邓君毅
DUAN Jiaxing;LAI Yuchen;DENG Junyi(School of Physics and Optoelectronic Engineering,Xidian University,Xi′an 710126,China;School of Mechanical Engineering,Shandong University,Jinan 250002,China;AVIC Lanzhou Wanli Aviation Electromechanical Co.,Ltd.,Lanzhou 730070,China)
出处
《机电工程技术》
2020年第4期23-26,154,共5页
Mechanical & Electrical Engineering Technology
关键词
电动静液作动器
传热机理
热力学建模与仿真
有限元分析
electro-hydrostatic actuator
heat transfer mechanism
thermodynamic modeling and analysis
finite element analysis
作者简介
第一作者:段嘉兴(1995-),男,甘肃金塔人,大学本科,研究领域为电作动系统与检测技术。
