| 具有转静件碰摩故障双转子系统的动力学模型及其小波变换特征 |
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| 引用本文： | 刘献栋,李其汉,王德友.具有转静件碰摩故障双转子系统的动力学模型及其小波变换特征[J].航空动力学报,2000,15(2):187-190. |
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| 作者姓名： | 刘献栋 李其汉 王德友 |
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| 作者单位： | 1.石家庄铁道学院机械工程系,河北石家庄050043 |
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| 摘 要： | 本文利用拉格朗日方程建立了具有碰摩故障的某型双转子航空发动机转子系统的动力学方程, 通过数值计算对该故障进行了仿真, 并对仿真结果进行了频谱分析和小波变换, 得出本文建立的双转子系统的动力学模型是正确的、利用小波变换对转静件碰摩故障进行诊断是非常有效的。
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| 关 键 词： | 转子 摩擦 故障诊断 |
| 文章编号： | 1000-8055(2000)02-0187-04 |
| 收稿时间： | 3/3/1999 12:00:00 AM |
| 修稿时间： | 1999-03-03 |
Dynamic Model of Dual-Rotor System with Rub-Impact Fault Between Rotor and Stator and its Feature of Wavelet Transform |
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| Liu Xiandong,Li Qihan and Wang Deyou.Dynamic Model of Dual-Rotor System with Rub-Impact Fault Between Rotor and Stator and its Feature of Wavelet Transform[J].Journal of Aerospace Power,2000,15(2):187-190. |
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| Authors: | Liu Xiandong Li Qihan and Wang Deyou |
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| Institution: | 1.Mech.Eng.Dept.,Shijiazhuang Railway Institute,Shijiazhuang 050043,China2.4th Dept.Beijing University of Aeronautics and Astronautics,Beijing 100083,China3.13th Division,Shenyang Aeroengine Institute,Shenyang 110015,China |
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| Abstract: | Using Lagrange′s equation,the dynamic equation of dual rotor system with rub impact fault of some type of aeroengine is established,and emulations of this fault is completed through numerical calculation.The spectral analysis and wavelet transform are also made,and the conclusions are drawn that the dynamic model of dual rotor system with rub impact fault is valid and the wavelet transform is a very effective tool to diagnose this fault. |
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| Keywords: | rotors rub fault diagnosis |
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