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| Analysis of Periodic Solution Stability of Inclined Rotor-journal Bearing System |
| Liu Zhansheng; Qian Dashuai; Sun Liquan |
| Harbin Institute of Technology, Harbin 150001，China |
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Abstract Abstract: To study the periodic solution stability problems of inclined rotor-journal bearing system, the dynamic equation of inclined rotor system is established considering the change of radial load of journal bearing based on finite element method. The response of inclined rotor-journal bearing system is obtained by using Newmark method. The influences of inclination angle on rotor unstable threshold and width of unstable area are analyzed. Simulation results show that the increase of inclination angle lead to the decrease of unstable threshold and broaden the unstable area, while the upper boundaries of unstable areas change little. The experimental researches validate the simulation results.
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Received: 04 June 2010
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2011, Vol. 30 
