Finite Element Simulation of Rotor-Bearing Systems With Internal Damping

[+] Author and Article Information
E. S. Zorzi

Systems Dynamics, AiResearch Manufacturing Co. of Arizona, A Division of the Garrett Corp., Phoenix, Ariz.

H. D. Nelson

Arizona State University, Tempe, Ariz.

J. Eng. Power 99(1), 71-76 (Jan 01, 1977) (6 pages) doi:10.1115/1.3446254 History: Received January 06, 1976; Online July 14, 2010


The implementation of finite element simulations for the study of rotor dynamic systems has been the subject of recent publications. Since the finite element offers obvious modeling advantages, particularly in modeling large-scale systems, this study extends the linear finite element concept to provide a detailed evaluation of damped rotor stability. In this work the effects of both internal viscous and hysteretic damping have been incorporated into the finite element model. Both produce circulatory terms in the generalized equations of motion which encourages the destabilization of this nonconservative system. Results are presented for both hysteretic and viscous forms of damping. Both forms of internal damping destabilize the rotor system and induce nonsynchronous forward precession. The stabilizing effects of anisotropic bearing stiffness and external damping are also demonstrated.

Copyright © 1977 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In