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RESEARCH PAPERS

A Response Spectrum Method for Seismic Design Evaluation of Rotating Machines

[+] Author and Article Information
M. P. Singh, T. S. Chang

Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0219

L. E. Suarez

Department of General Engineering, University of Puerto Rico, Mayaguez, PR 00709

J. Vib. Acoust 114(4), 454-460 (Oct 01, 1992) (7 pages) doi:10.1115/1.2930284 History: Received March 01, 1991; Online June 17, 2008

Abstract

The equations of motion of rotating machines subjected to seismic motions are quite complex, consisting of asymmetric general matrices with parametric and gyroscopic terms. Fortunately, the parametric and some other terms causing analytical complications can be ignored. This enables one to analyze rotating machines by a generalized modal analysis approach. This approach is used to develop a response spectrum approach for calculating the seismic design response for design inputs defined by response spectrum curves. Applicability of this proposed approach to rotor-bearing systems is verified through a time history ensemble analysis.

Copyright © 1992 by The American Society of Mechanical Engineers
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