0
RESEARCH PAPERS

On the Instability of Rotating Shafts Due to Internal Damping

[+] Author and Article Information
L. L. Bucciarelli

School of Engineering, Massachusetts Institute of Technology, Cambridge, Mass. 02139

J. Appl. Mech 49(2), 425-428 (Jun 01, 1982) (4 pages) doi:10.1115/1.3162104 History: Received March 01, 1981; Revised October 01, 1981; Online July 21, 2009

Abstract

Internal damping in rotating shafts can lead to dynamic instability — the unbounded growth over time of the off-axis displacement of the spinning shaft in whirl. In analyzing this phenomenon, some authors have phrased the instability criterion in terms of energies dissipated through internal and external damping. One such study has claimed that instability ensues when the rate of work done by internal damping equals that done by external damping. This analysis shows that this criterion is wrong and explains why it fails. It also provides a clear picture of how internal forces can act to produce instability by coupling the motion of spin with motion in whirl.

Copyright © 1982 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

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