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RESEARCH PAPERS: Gas Turbines: Combustion and Fuels

Improving Traditional Balancing Methods for High-Speed Rotors

[+] Author and Article Information
J. Ling, Y. Cao

Department of Mechanical Engineering, Florida International University, Miami, FL 33199

J. Eng. Gas Turbines Power 118(1), 95-99 (Jan 01, 1996) (5 pages) doi:10.1115/1.2816556 History: Received October 19, 1994; Online November 19, 2007

Abstract

This paper introduces frequency response functions, analyzes the relationships between the frequency response functions and influence coefficients theoretically, and derives corresponding mathematical equations for high-speed rotor balancing. The relationships between the imbalance masses on the rotor and frequency response functions are also analyzed based upon the modal balancing method, and the equations related to the static and dynamic imbalance masses and the frequency response function are obtained. Experiments on a high-speed rotor balancing rig were performed to verify the theory, and the experimental data agree satisfactorily with the analytical solutions. The improvement on the traditional balancing method proposed in this paper will substantially reduce the number of rotor startups required during the balancing process of rotating machinery.

Copyright © 1996 by The American Society of Mechanical Engineers
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