Dang Pei
Henan University of Technology, Zhengzhou, 450011, China
Tan Lian
North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou, 450011, China
ABSTRACT
An rotor-sliding bearing dynamics model supported on sliding bearing was established_DThe dynamic model of the nonlinear rigidity-rotor system with rubbing fault was set up by the physics nonlinear factors. The nonlinear dynamic behaviors of the system caused by rubbing fault were studied by using the numerical value integral and Poincaré mapping methods. The bifurcation diagrams of the response were given following the changing of rotating speed_Aeccentricity and stiffness of the stator. Some typical Poincaré maps, phase plane portraits, trajectory of journal centers and amplitude spectra, et al, were also given. There are doubling-periods, approximate-periods and chaos behaviors in the rotor system. Which may provide theory references to fault diagnoses, vibration control, safety operating and enable early prediction of the fault in rotating machinery.
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How to cite this article
Dang Pei and Tan Lian, 2013. Study on Some Nonlinear Dynamics Problems of Rotor-sliding Bearing System with Impact-rubbing. Information Technology Journal, 12: 4089-4094.
DOI: 10.3923/itj.2013.4089.4094
URL: https://scialert.net/abstract/?doi=itj.2013.4089.4094
DOI: 10.3923/itj.2013.4089.4094
URL: https://scialert.net/abstract/?doi=itj.2013.4089.4094
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