Influence of Parameter Changes to Stability Behavior of Rotors,

Abstract

The occurrence of unstable vibrations in rotating machinery requires corrective measures for improvements of the stability behavior. Before a measure will be realized, different possibilities should be investigated. In this paper a simple approximate method is represented, to find out the influence of parameter changes to the stability behavior. The method is based on an expansion of the eigenvalues in terms of system parameters. Influence coefficients show in a very intuitive way the effect of structural modifications. The method first of all was applicated to simple nonconservative rotor models. Furthermore it was approved for an unsymmetric rotor of a test rig.

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1982
Accession Number
ADP000364

Entities

People

  • Claus P. Fritzen
  • Rainer Nordmann

Organizations

  • University of Kaiserslautern

Tags

DTIC Thesaurus Topics

  • Coefficients
  • Differential Equations
  • Eigenvalues
  • Equations
  • Instability
  • Mathematical Analysis
  • Mathematics
  • Mechanical Equipment
  • Mechanical Waves
  • Motion
  • Turbomachinery
  • Vibration
  • Workshops

Readers

  • Aerospace Engineering
  • Control Systems Engineering.