A fast and accurate model to calculate the fluid-film forces of a fluid-film bearing with the Reynolds boundary condition is presented in the paper by using the free boundary theory and the variational method. The model is applied to the nonlinear dynamical behavior analysis of a rigid rotor in the elliptical bearing support. Both balanced and unbalanced rotors are taken into consideration. Numerical simulations show that the balanced rotor undergoes a supercritical Hopf bifurcation as the rotor spin speed increases. The investigation of the unbalanced rotor indicates that the motion can be a synchronous motion, subharmonic motion, quasi-period motion, or chaotic motion at different rotor spin speeds. These nonlinear phenomena are investigated in detail. Poincaré maps, bifurcation diagram and frequency spectra are utilized as diagnostic tools.
Skip Nav Destination
e-mail: zhengts@fudan.edu.cn
Article navigation
February 2006
Technical Papers
Nonlinear Behavior Analysis of a Rotor Supported on Fluid-Film Bearings
Guangyan Shen,
Guangyan Shen
Graduate
Department of Mechanics and Engineering Science,
Fudan University
, Shanghai 200433, P. R. China
Search for other works by this author on:
Zhonghui Xiao,
Zhonghui Xiao
Graduate
Department of Mechanics and Engineering Science,
Fudan University
, Shanghai 200433, P. R. China
Search for other works by this author on:
Wen Zhang,
Wen Zhang
Professor
Department of Mechanics and Engineering Science,
Fudan University
, Shanghai 200433, P. R. China
Search for other works by this author on:
Tiesheng Zheng
Tiesheng Zheng
Professor
Department of Mechanics and Engineering Science,
e-mail: zhengts@fudan.edu.cn
Fudan University
, Shanghai 200433, P. R. China
Search for other works by this author on:
Guangyan Shen
Graduate
Department of Mechanics and Engineering Science,
Fudan University
, Shanghai 200433, P. R. China
Zhonghui Xiao
Graduate
Department of Mechanics and Engineering Science,
Fudan University
, Shanghai 200433, P. R. China
Wen Zhang
Professor
Department of Mechanics and Engineering Science,
Fudan University
, Shanghai 200433, P. R. China
Tiesheng Zheng
Professor
Department of Mechanics and Engineering Science,
Fudan University
, Shanghai 200433, P. R. Chinae-mail: zhengts@fudan.edu.cn
J. Vib. Acoust. Feb 2006, 128(1): 35-40 (6 pages)
Published Online: July 14, 2005
Article history
Received:
November 5, 2003
Revised:
July 14, 2005
Citation
Shen, G., Xiao, Z., Zhang, W., and Zheng, T. (July 14, 2005). "Nonlinear Behavior Analysis of a Rotor Supported on Fluid-Film Bearings." ASME. J. Vib. Acoust. February 2006; 128(1): 35–40. https://doi.org/10.1115/1.2149394
Download citation file:
Get Email Alerts
Related Articles
Study on Nonlinear Dynamic Response of an Unbalanced Rotor Supported on Ball Bearing
J. Vib. Acoust (December,2009)
Grazing and Chaos in a Periodically Forced, Piecewise Linear System
J. Vib. Acoust (February,2006)
Chaotic Vibration and Internal Resonance Phenomena in Rotor Systems
J. Vib. Acoust (April,2006)
Stability Analysis of Two-Point Mooring System in Surge Oscillation
J. Comput. Nonlinear Dynam (April,2010)
Related Proceedings Papers
Related Chapters
Average Shaft Centerline Plots
Fundamentals of Rotating Machinery Diagnostics
Unbalance
Fundamentals of Rotating Machinery Diagnostics
Research Tools
Bearing Dynamic Coefficients in Rotordynamics: Computation Methods and Practical Applications