Exact Receptances of Nonproportionally Damped Dynamic Systems

[+] Author and Article Information
B. Yang

Department of Mechanical Engineering, University of Southern California, Los Angeles, CA 90089-1453

J. Vib. Acoust 115(1), 47-52 (Jan 01, 1993) (6 pages) doi:10.1115/1.2930313 History: Received August 01, 1991; Revised March 01, 1992; Online June 17, 2008


This paper presents an exact method for evaluating the receptances of nonproportionally damped dynamic systems. Based on a decomposition of the damping matrix, an iteration procedure is developed. This method does not require matrix inversion, and completely eliminates the error caused by undamped modal data. Compared to the existing exact solution methods, the proposed method can save more time in the computation. Also, the study yields a convenient way to determine the asymptotic stability of nonproportionally damped systems.

Copyright © 1993 by The American Society of Mechanical Engineers
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