发动机附件机匣结构系统振动特性
Vibration characteristics of accessory gearbox structure system of engine
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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.Abstract: 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.
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[1] 林基恕.航空燃气涡轮发动机机械系统设计[M].北京:航空工业出版社,2005. [2] SUN Zhaohui,Steyer G C,Meinhardt G,et al.NVH robustness design of axle systems[J].SAE Transactions,2003,112(6):1746-1754. [3] Chung C H J,Steyer G,Abe T,et al.Gear noise reduction through transmission error control and gear blank dynamic tuning[J].SAE Transactions,1999,108(6):2829-2837. [4] Sun Z,Steyer G,Ranek M.FEA studies of axle system dynamics.Detroit,US:SAE 2002 World Congress,2002-01-1190,2002. [5] Steyer G C,Lim T C.System dynamics in quiet gear design [C]//Proceedings of the 9th International Modal Analsysis Conference.Florence,Italy:SEM Society for Experimental Mechanics Inc,1991:999-1005. [6] Dalpiaz G,Rivola A,Rubini R.Effectiveness and sensitivity of vibration processing techniques for local fault detection in gears[J].Mechanical Systems and Signal Processing,2000,14(3):387-412. [7] 宋乐民.发动机中央传动锥齿轮失效机理的试验研究[M]//杨世昌.航空发动机失效分析典型案例.北京:国防工业出版社,2002:188-201. [8] 杨荣,常春江,魏文山,等.某型发动机附件机匣中心传动从动锥齿轮断裂故障分析 [J].航空发动机,1999,25(4):31-38. YANG Rong,CHANG Chunjiang,WEI Wenshan,et al.Failure analysis of accessory gearbox's bevel gear[J].Aeroengin,1999,25(4):31-38.(in Chinese) [9] 陈光.航空发动机结构设计分析[M].北京:北京航空航天大学出版社,2006. [10] JIANG Lidong,LIU Baoxing,ZHU Zhenrong,et al.Study on dynamic excitation of the star gearing[J].Applied Mechanics and Material,2011,86:116-119. [11] 王建军,李其汉,李润方.齿轮系统非线性振动研究进展[J].力学进展,2005,35(1):37-51. WANG Jianjun,LI Qihan,LI Runfang.Research advances for nonlinear vibration of gear transmission systems[J].Advances in Mechanics,2005,35(1):37-51.(in Chinese) [12] 晏砺堂,朱梓根,李其汉,等.高速旋转机械振动[M].北京:国防工业出版社,1994. [13] 李润方,王建军.齿轮系统动力学[M].北京:科学出版社,1997. [14] Wang J J,Li R F,Peng X H.Survey of nonlinear vibration of gear transmission systems[J].Applied Mechanics Reviews,2003,56(3):309-329. [15] Smart Manufacturing Technology(SMT)公司.Masta培训手册[M].Nottingham,UK:SMT,2002.
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