RESEARCH PAPERS: Vibrations in Rotating Machinery

Identification of Modal Parameters of an Elastic Rotor With Oil Film Bearings

[+] Author and Article Information
Rainer Nordmann

University of Kaiserslautern, Federal Republic of Germany

J. Vib., Acoust., Stress, and Reliab 106(1), 107-112 (Jan 01, 1984) (6 pages) doi:10.1115/1.3269138 History: Received June 06, 1983; Online November 23, 2009


Investigations of the dynamic behavior of structures have become increasingly important in the design process of mechanical systems. To have a better understanding of the dynamic behavior of a structure, the knowledge of the modal parameters is very important. The powerful method of experimental modal analysis has been used to measure modal parameters in many mechanical engineering problems. But the method was mainly applied to nonrotating structures. This presentation shows improvements of the classical modal analysis for a successful application in rotating machinery with nonconservative effects. An example is given, investigating the modal parameters of an elastic rotor with oil film bearings.

Copyright © 1984 by ASME
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