Calculation of component mode synthesis matrices from measured frequency response functions, part 1: Theory

J. A. Morgan, C. Pierre, G. M. Hulbert

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17 Scopus citations

Abstract

This paper presents a new method to calculate the so-called Craig-Bampton component mode synthesis (CMS) 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. Experimental implementation of the method requires estimating the modal parameters corresponding to the measured free boundary modes and the Maclaurin series expansion coefficients corresponding to the omitted modes. Theoretical developments are presented in the present paper, Part 1. The performance of the new method is then demonstrated in Part 2 (Morgan et al., 1998) by comparison of experiment and analysis for a simple two-beam system.

Original languageEnglish
Pages (from-to)503-508
Number of pages6
JournalJournal of Vibration and Acoustics, Transactions of the ASME
Volume120
Issue number2
DOIs
StatePublished - Apr 1998

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