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Direct method for computation of frequencies in structures with constrained displacements

Authors
Journal
Computers & Structures
0045-7949
Publisher
Elsevier
Publication Date
Volume
21
Issue
5
Identifiers
DOI: 10.1016/0045-7949(85)90216-0
Disciplines
  • Computer Science

Abstract

Abstract An alternative to the master-slave algorithm to reduce the number of degrees of freedom of structural systems conditioned by linear homogeneous constraints is presented. The theoretical basis of the method includes a penalty term in the definition of the variational principle and the consideration of its asymptotic behavior. The method is analyzed for singular and nonsingular mass matrices and applied to some actual cases encountered in structural practice.

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