Characteristic constraint modes for component mode synthesis

Matthew P. Castanier, Yung Chang Tan, Christophe Pierre

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

In this paper, a technique is presented for improving the efficiency of the Craig-Bampton method of Component Mode Synthesis (CMS). An eigenanalysis is performed on the partitions of the CMS mass and stiffness matrices that correspond to the so-called constraint modes. The resultant eigenvectors are referred to as "characteristic constraint modes," since they represent the characteristic motion of the interface between the component structures. By truncating the characteristic constraint modes, a CMS model with a highly-reduced number of degrees of freedom may be obtained. An example of a cantilever plate is considered. It is shown that relatively few characteristic constraint modes are needed to yield accurate approximations of the lower natural frequencies. This method also provides physical insight into the mechanisms of vibration transmission in complex structures.

Original languageEnglish
Title of host publication17th Biennial Conference on Mechanical Vibration and Noise
Pages2311-2318
Number of pages8
ISBN (Electronic)9780791880395
DOIs
StatePublished - 1999
EventASME 1999 Design Engineering Technical Conferences, DETC 1999 - Las Vegas, United States
Duration: 12 Sep 199916 Sep 1999

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume7B-1999

Conference

ConferenceASME 1999 Design Engineering Technical Conferences, DETC 1999
Country/TerritoryUnited States
CityLas Vegas
Period12/09/9916/09/99

Fingerprint

Dive into the research topics of 'Characteristic constraint modes for component mode synthesis'. Together they form a unique fingerprint.

Cite this