ACCURATE METHOD OF DYNAMIC SUBSTRUCTURING WITH SIMPLIFIED COMPUTATION.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

84 Scopus Citations
View graph of relations

Author(s)

  • Yee Tak Leung

Detail(s)

Original languageEnglish
Pages (from-to)1241-1256
Journal / PublicationInternational Journal for Numerical Methods in Engineering
Volume14
Issue number8
Publication statusPublished - 1979
Externally publishedYes

Abstract

A new dynamic substructuring method is presented. The substructures are identified by their fixed-interface modes and the condensed stiffness and mass matrices at zero vibration frequency. Physical co-ordinates are used instead of the modal co-ordinates to make the condition of compatibility between elements applicable. The dimension of the fundamental matrices is equal to the number of interface co-ordinates for each substructure. All information needed to formulate the fundamental matrices may be obtained experimentally. Both discrete and continuous parameter models are considered. A number of numerical examples are given and the method is compared with the other methods of dynamic substructure. It is shown that the numerical accuracy lost in the ordinary eigenvalue economization process may be recovered by the present method.