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RESEARCH PAPERS: Basic Vibrations Papers

Eigenvalue Derivatives for Damped Torsional Vibrations

[+] Author and Article Information
S. Doughty

Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843

J. Mech. Des 104(2), 463-465 (Apr 01, 1982) (3 pages) doi:10.1115/1.3256368 History: Received June 04, 1981; Online November 17, 2009

Abstract

In the design of rotating machinery, it is often necessary to project design changes in order to modify the system torsional natural frequencies. For damped systems, there are additional questions regarding the change in modal decay rates associated with a parameter change. This paper provides a simple, easily implemented procedure to calculate the derivatives of the complex eigenvalue for the damped torsional system when the eigensolution is known.

Copyright © 1982 by ASME
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