航空发动机转子-滚动轴承-支承-机匣耦合系统的碰摩故障分析与验证

陈果; 李成刚; 王德友

航空发动机转子-滚动轴承-支承-机匣耦合系统的碰摩故障分析与验证

1.
南京航空航天大学民航学院, 南京 210016
2.
沈阳航空发动机设计研究所强度振动技术中心, 沈阳 110015

基金项目: 国家自然科学基金(50705042);航空科学基金(2007ZB52022)

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出版历程
- 收稿日期: 2007-06-28
- 修回日期: 2007-09-25
- 刊出日期: 2008-07-28

Nonlinear dynamic analysis and experiment verification of rubbing faults of rotor-ball bearing-support-stator coupling system for aero-engine

1.
College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2.
Strength and Vibration Technique Center, Shenyang Aero-engine Design Institute, Shenyang 110015, China

摘要

摘要: 针对实际的航空发动机转子系统,建立了含碰摩故障的转子-滚动轴承-支承-机匣耦合动力学模型.在模型中,考虑了机匣运动,弹性支承、挤压油膜阻尼,充分考虑了轴承间隙、滚珠与滚道的非线性赫兹接触力以及由滚动轴承支撑刚度变化而产生的变柔性(VaryingcomplianceVC)振动.运用数值积分方法获取了系统响应,并建立带机匣的航空发动机转子实验器进行碰摩故障实验,仿真结果与实验结果比较分析表明了模型的有效性.
- 航空发动机 /
- 转子 /
- 滚动轴承 /
- 弹性支承 /
- 机匣 /
- 碰摩
Abstract: Anew rotor-ball bearing-support-stator coupling system dynamic model including rubbing fault was established for rotor-bearing system of practical aeroengine.In the model,the stator motion,the flexible support,squeeze film damper(SFD) were considered,and the nonlinear factors of ball bearing such as the clearance of bearing,nonlinear Hertzian contract force between balls and races,and the varying compliance vibration because of periodical variety of contact position between balls and races were modeled.The numerical integral method was employed to obtain system's responses,and an aeroengine tester with stator was established to carry out rubbing fault experiment.Finally,the simulation results from rotor-ball bearing-support-stator coupling model were compared with the experiment results in order to indicate the validity of the new model.
- aero-engine /
- rotor /
- ball bearing /
- flexible support /
- stator /
- rubbing

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参考文献(13)

[1]	闻邦椿,武新华,丁千,等.故障旋转机械非线性动力学的理论与试验[M].北京:科学出版社,2004:54-87.
[2]	Zhang Y M,Wen B C,Liu A L.Reliability sensitivity for rotor-stator systems with rubbing[J].Journal of Sound and Vibration,2003,259(5):1095-1107.
[3]	Muszynska A,Goldman P.Chaotic responses of unbalance rotor bearing stator systems with looseness or rubs[J].Chaos,Solitons and Fractals.1995,5(9):1683-1704.
[4]	罗跃纲,李振平,刘长利,等.转子系统松动与碰摩耦合故障非线性特性研究[J].中国机械工程,2003,14(14):1224-1226.LUO Yuegang,LI Zhenping,LIU Changli,et al.Study on nonlinear behaviov of rotor system with pedestal looseness and rubbing faults[J].Chinese Mechanical Engineering,2003,14(14):1224-1226.(in Chinese)
[5]	李振平,罗跃纲,姚红良,等.具有裂纹-碰摩耦合故障转子-轴承系统的动力学研究[J].应用力学学报,2003,20(3):136-140.LI Zhenping,LUO Yuegang,YAO Hongliang,et al.Dynamics of rotor-bearing system with coupling faults of crack and rub-impact chinese Chinese[J].Journal of Applied Mechanics,2003,20(3):136-140.(in Chinese)
[6]	袁惠群,闻邦椿,王德友,等.滚动轴承-转子-定子系统的碰摩故障分析[J].东北大学学报(自然科学版),2003,24(3):244-247.YUAN Huiqun,WEN Bangchun,WANG Deyou,et al.Rubbing fault analysis of balll bearing-rotor-stator system[J].Journal Northeastern University (Natural Science),2003,24(3):244-247.(in Chinese)
[7]	陈果.带碰摩耦合故障的转子-滚动轴承-机匣耦合动力学模型[J].振动工程学报,2007,20(4):361-368.CHEN Guo.Rotor-ball bearing stator coupling dynamics model with rubbing coupling fault[J].Journal of Vibration Engineering,2007,20(4):361-368.(in Chinese)
[8]	Fukata S,Gad E H,Kondou T,et al.On the radial vibration of ball bearings (computer simulation)[J],Bulletin of the JSME 28,1985:899-904.
[9]	姜健飞,胡良剑,唐俭.数值分析及其MATLAB实验[M].北京:科学出版社,2004:149-151.JIANG Jianfei,HU Liangjian,TANG Jian.Numerical analysis and MATLAB experimentation[M].Beijng:Science Press,2004:149-151.(in Chinese)
[10]	Mevel B,Guyader J L.Routs to chaos in ball bearing[J].Journal of Sound and Vibration,1993,162(3):471-487.
[11]	航空发动机设计手册总编委会.航空发动机设计手册(第19分册)转子动力学及整机振动[M].北京:航空工业出版社,2000:208-226.
[12]	陈予恕,田家玉,金宗武,等.非线性动力学理论与大型火电组振动故障综合治理技术[J].中国机械工程,1999,10(9):1063-1067.CHEN Yushu,TIAN Jiayu,JIN Zongwu,et al.Techniques of soluving irregular operation of a large scale gas turbine in a comprehensive way[J].Chinese Mechanical Engineering,1999,10(9):1063-1067.(in Chinese)
[13]	高艳营,李勇,王德友.转子-机匣系统碰摩故障特征试验研究[J].航空发动机,2002,(4):16-21.GAO Yanlei,LI Yong,WANG Deyou.Experimental investigation of rotor-to-casing rubbing fault[J].Aero-engine,2002,(4):16-21.(in Chinese)