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RESEARCH PAPERS

Calculation of Component Mode Synthesis Matrices From Measured Frequency Response Functions, Part 2: Application

[+] Author and Article Information
J. A. Morgan

Powertrain Division, General Motors Corporation, Warren, MI 48090

C. Pierre, G. M. Hulbert

Mechanical Engineering and Applied Mechanics, The University of Michigan, Ann Arbor, MI 48109

J. Vib. Acoust 120(2), 509-516 (Apr 01, 1998) (8 pages) doi:10.1115/1.2893859 History: Received December 01, 1995; Revised August 01, 1996; Online February 26, 2008

Abstract

This paper demonstrates how to calculate Craig-Bampton component mode synthesis matrices from measured frequency response functions. The procedure is based on a modified residual flexibility method, from which the Craig-Bampton CMS matrices are recovered, as presented in the companion paper, Part I (Morgan et al., 1998). A system of two coupled beams is analyzed using the experimentally-based method. The individual beams’ CMS matrices are calculated from measured frequency response functions. Then, the two beams are analytically coupled together using the test-derived matrices. Good agreement is obtained between the coupled system and the measured results.

Copyright © 1998 by The American Society of Mechanical Engineers
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