航空发动机附件传动齿轮振动特性分析与试验研究  

THE FEM ANALYSIS AND EXPERIMENTAL RESEARCH ON THE VIBRATION CHARACTERISTICS OF AERO-ENGINE ACCESSORY GEAR

作　　者：卢艳辉[1,2] 梅庆[1,2] 雷沫枝[1,2] 吴桂娇 张红晓[1,2] 

机构地区：[1]中国航空动力机械研究所,株洲412002 [2]航空发动机振动技术航空科技重点实验室,株洲412002

出　　处：《机械强度》2014年第4期499-503,共5页Journal of Mechanical Strength

摘　　要：为了解某型航空发动机附件传动齿轮的振动特性,采用有限元素法对其进行了振动特性计算分析。为验证分析结果的有效性,分别对附件传动齿轮进行了模态试验分析和台架旋转状态下的振动特性测试,获得了静态与实际工作状态下齿轮的振动频率和振型。试验结果表明,附件传动齿轮工作状态下的振动特性与有限元分析结果吻合性良好,其振动频率受传递扭矩的影响较小。研究为其他航空发动机附件传动齿轮的振动特性分析提供了重要参考。Vibration characteristics analysis by using the finite element method （FEM） was conducted on an aero-engine accessory gear. To validate the results, the modal test and bench test were done to the gear and the vibration frequencies and modes on the working condition were pursued. The test results are consistent well with the FEM analysis and the transmission torque has little influence on the vibration frequencies of the gear. This work provides important reference to the dynamic characteristics analysis of other similar accessory gears.

关 键 词：航空发动机 附件传动齿轮 有限元法 模态振型 台架测试 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TH132[自动化与计算机技术—计算机科学与技术]