Stability Evaluation of Rotor/Bearing System by Perturbation Tests,

Abstract

The paper presents the stability study of rotor/bearing systems. Even though it was limited to study of a fully lubricated bearing subject to oil whirl, and further limited to low eccentricity region for linearity and with only one type of lubricant, it can be seen that the perturbation methodology, together with the sorting of the impedance terms into direct and quadrature with respect to input force can be very useful to the general study of stability. Further, the concept of active feedback should assist to increase knowledge in rotor system stability. While there remains a large amount of study to be accomplished, perhaps some more tools are available to assist this field of analysis.

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1982
Accession Number
ADP000365

Entities

People

  • Agnieszka Muszynska
  • Donald E. Bently

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Eccentricity
  • Feedback
  • Impedance
  • Instability
  • Linearity
  • Lubricants
  • Perturbations
  • Test And Evaluation
  • Test Methods
  • Turbomachinery
  • Workshops

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).