Stability Analysis of Rotor-Bearing Systems Using Component Mode Synthesis

[+] Author and Article Information
D. A. Glasgow

U. S. Air Force Academy, Colorado

H. D. Nelson

Arizona State University, Tempe, Ariz.

J. Mech. Des 102(2), 352-359 (Apr 01, 1980) (8 pages) doi:10.1115/1.3254751 History: Received June 07, 1979; Online November 17, 2009


A method of component mode synthesis is presented for the analysis of multishaft rotor-bearings systems. The motion of each component of the system is described as the superposition of constraint modes associated with boundary coordinates and constrained precessional modes associated with internal coordinates. The constrained precessional modes for each component are truncated and the reduced component equations are assembled to yield a set of system equations. The nonsymmetric nature of the general problem requires the utilization of biorthogonality relations between right and left vector sets in order to decouple the component precessional modes. The method is developed for damped whirl speed/stability analysis and comparative results are presented for various levels of mode truncation for two example systems.

Copyright © 1980 by ASME
Topics: Stability , Bearings , Rotors
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