Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Applied Mechanics》 2001-04
Add to Favorite Get Latest Update

Effects of Nonlinear Rubbing and Impact Forces on the Bifurcation and Chaos Behaviors of Rub Rotor

Yuan Huiqun 1 Wen Bangchun 1 Wang Deyou 2 (Northeastern University) 1 (Shenyang Institute of Aeronautics Engine) 2  
Some phenomena appeared during rotor rubbing can be explained by the model with linear radial stiffness in certain case, but other phenomena such as super and sub harmony wave in rotor response and some plastic deformation appeared on contacting surface between rotor and stator could not expanded well with the model. In this paper, the complex behavior happened in rubbing is considered and the model of rotor radial stiffness with nonlinear fraction exponent is presented. The bifurcation and chaos behaviors of rotor with nonlinear impact force is studied by means of numerical stimulation. In view of the diagrams displaying bifurcation behavior, such as bifurcation diagram, rotor phase trajectory, Poincare mapping, maximum Lyapunov exponent, rotor shaft locus, abundant dynamic behaviors of rotor are revealed. Experiment on the rubbing rotor model is conducted and it shows distinct super and sub harmonic wave components, which qualitatively copes with the theoretic results.
【Fund】: 国家自然科学基金资助项目 (编号 :19990 5 10 )
【CateGory Index】: O322
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved