发动机附件机匣结构系统振动特性  

Vibration characteristics of accessory gearbox structure system of engine

作　　者：郭梅[1,2] 陈聪慧[1,2] 王建军[3] 梁作斌[1,2] 李锦花[1,2] 

机构地区：[1]中国航空工业集团公司沈阳发动机设计研究所,沈阳110015 [2]中国航空工业集团公司航空发动机动力传输航空科技重点实验室,沈阳110015 [3]北京航空航天大学能源与动力工程学院,北京100191

出　　处：《航空动力学报》2013年第7期1607-1612,共6页Journal of Aerospace Power

摘　　要：基于FEM和Masta软件,详细计算和分析了某型发动机附件机匣系统在内部啮合激励下的振动响应特性.首先计算得到了各级齿轮副的静啮合误差(位移)激励,然后详细计算了在内部啮合激励下的附件机匣壳体的振动响应,分析讨论了其基本规律和特点.计算得到的附件机匣在受力位置的振动响应幅值在最大值为80g,小于限制值150g.研究表明,所提出的方法和技术有助于在设计阶段对这类复杂传动系统的振动特性预测和评估.Based on finite element method（FEM） and software of Masta,the vibration response characteristics of accessory gearbox under the inner meshing excitation were calculated and analyzed.Firstly the static meshing error（displacement） excitations of gear pairs in each stage were obtained.Then the vibration response of case shell of accessory gearbox under the inner meshing excitation was researched.Finally the basic vibration characteristics of the accessory gearbox under the inner meshing excitation were discussed.The maximum vibration amplitudes obtained at key positions of the case shell are 80g lower than the limited value of 150g.The results indicate that the method and technique presented can be used effectively to predict and evalute the vibration characteristics of the accessory gearbox in design process.

关 键 词：附件机匣 内部啮合激励 振动响应特性 有限元方法 预测 

分 类 号：V232.8[航空宇航科学与技术—航空宇航推进理论与工程]