Numerical Analysis Method and Bifurcation of Gas-Lubricated Journal Bearing-Rotor System with Gyroscopic Effect
Based on the nonlinear theory,the unbalanced responses of the gas-lubricated journal bearing-rotor system are investigated.A time-dependent mathematical model is established to describe the pressure distribution of gas-lubricated journal bearing with nonlinearity.The rigid rotor with gyroscopic effect supported by self-acting gas journal bearing with three axial grooves is modeled.The differential transformation method is employed to solve the time-dependent gas-lubricated Reynolds equation,and the dynamic motion equation is solved by Newmark-β method.The unbalanced responses of the rotor system supported by finite gas-lubricated journal beatings are analyzed by bifurcation diagram,orbit diagram,Poincaré map.The numerical results reveal periodic,period-4 motion of nonlinear behaviors of the system.
Gas-lubricated journal bearing Differential transformation method Nonlinear Bifurcation
Yongfang Zhang Xiaolei Shi Yanjun Lu Lie Yu
School of Printing and Packaging Engineering, Xian University of Technology, Xian, Shaanxi,People School of Mechanical and Instrumental Engineering, Xian University of Technology, Xian, Shaanxi,Pe Institute of Mechatronics and Information Systems, Xian Jiaotong University, Xian, Shaanxi,People
国际会议
重庆
英文
197-201
2011-06-23（万方平台首次上网日期，不代表论文的发表时间）