Numerical analysis of nonlinear rotor-bearing-seal system |
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Authors: | Mei Cheng Guang Meng Jian-ping Jing |
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Institution: | (1) State Key Laboratory of Vibration, Shock & Noise, Shanghai Jiaotong University, Shanghai, 200240, China |
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Abstract: | The system state trajectory, Poincaré maps, largest Lyapunov exponents, frequency spectra and bifurcation diagrams were used to investigate the non-linear dynamic behaviors of a rotor-bearing-seal coupled system and to analyze the influence of the seal and bearing on the nonlinear characteristics of the rotor system. Various nonlinear phenomena in the rotor-bearing-seal system, such as periodic motion, double-periodicmotion, multi-periodic motion and quasi-periodic motion were investigated. The results may contribute to a further understanding of the non-linear dynamics of the rotor-bearing-seal coupled system. |
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Keywords: | nonlinear vibration rotor bearing seal |
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