飞行器舵机摆线减速器输出装置传热分析  

Heat transfer analysis of the output unit of cycloidal reducers for aircraft actuator

作　　者：钟晖[1] 谭儒龙[1] 陈兵奎[1] 易文翠[1,2] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]重庆电子工程职业学院,重庆401331

出　　处：《重庆大学学报（自然科学版）》2014年第5期8-12,共5页Journal of Chongqing University

基　　金：重庆教委科学技术研究项目资助(KJ122202)

摘　　要：为探究飞行器舵机在高温下的工作情况,针对飞行器舵机摆线减速器,利用Unigraphics NX,Hypermesh和ANSYS等软件,基于有限元方法对减速器输出机构进行传热分析。采用高阶四面体单元对减速器销轴输出机构进行有限元离散,并在与舵翼直接相连的输出机构凸台采用等温加载,经数值计算得到飞行器输出机构温度分布及变化状况。结果表明:有限元方法可以有效地分析飞行器输出机构传热情况,舵翼温度和摆线轮定位位置是影响减速器正常工作时间的重要因素,降低舵翼温度以及将摆线轮靠销轴远热端定位可提高飞行器舵机寿命。To investigate the work condition of the aircraft actuators in high temperature ,heat transfer process of the output unit of a cycloidal reducer of the actuator is taken into account by Unigraphics NX , Hypermesh and ANSYS softwares based on finite element analysis （FEA） .The temperature distribution of the output unit is obtained by meshing model ,applying loads and solving discrete problems .Then ,the temperature variation of the output unit is gotten by sampling and processing the data of FEA results .In the end ,three main conclusions are draw n .First ,the heat transfer process of the output units of cycloidal reducers of actuators can be analyzed by FEA efficiently .Second ,the temperature of the rudder and the design position of cycloid gears are two major factors in the operating life of reducers .Third ,the operating life can be improved by lowering the rudder temperature and installing the cycloidal gear as far as possible away from the heat source .

关 键 词：舵机 摆线减速器 有限元方法 传热 

分 类 号：TJ765.4[兵器科学与技术—武器系统与运用工程]