TY - GEN
T1 - Stability influence of different eccentric phases in a rotor–bearing system
AU - Mo, Wenchao
AU - Jiao, Yinghou
AU - Chen, Zhaobo
AU - Zhang, Enjie
N1 - Publisher Copyright:
Copyright © 2017 ASME.
PY - 2017
Y1 - 2017
N2 - A dynamic model of a rotor–bearing system with two discs is proposed in this study. The effect of eccentric phases of two discs on the oil-film stability is investigated. Considering the gyroscopic effect, the nonlinear dynamic behavior of the rotor-bearing system with two discs is analyzed based on the Finite Element Method. Two sliding bearings are simulated by the unsteady nonlinear oil-film force based on the assumption of short bearing model. The Newmark integration method is adopted to solve the equation. The research focuses on the stable region considering the eccentric phases of two discs and nonlinear responses of the rotor–bearing system by using the Poincaré maps, bifurcation diagrams and spectrum cascades. The results indicate the influence of different eccentric phases of two discs on dynamic response. The relationship between the stable region of the rotor-bearing system and eccentric phases of two discs is obtained, which is very important for the design of the rotor-bearing system.
AB - A dynamic model of a rotor–bearing system with two discs is proposed in this study. The effect of eccentric phases of two discs on the oil-film stability is investigated. Considering the gyroscopic effect, the nonlinear dynamic behavior of the rotor-bearing system with two discs is analyzed based on the Finite Element Method. Two sliding bearings are simulated by the unsteady nonlinear oil-film force based on the assumption of short bearing model. The Newmark integration method is adopted to solve the equation. The research focuses on the stable region considering the eccentric phases of two discs and nonlinear responses of the rotor–bearing system by using the Poincaré maps, bifurcation diagrams and spectrum cascades. The results indicate the influence of different eccentric phases of two discs on dynamic response. The relationship between the stable region of the rotor-bearing system and eccentric phases of two discs is obtained, which is very important for the design of the rotor-bearing system.
UR - https://www.scopus.com/pages/publications/85041079750
U2 - 10.1115/IMECE2017-70528
DO - 10.1115/IMECE2017-70528
M3 - 会议稿件
AN - SCOPUS:85041079750
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
BT - Dynamics, Vibration, and Control
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017
Y2 - 3 November 2017 through 9 November 2017
ER -