MODELS IN SHIP VIBRATION

A brief introduction to finite element models is given by way of defining method components and the models' idealization. It is shown how the lumped mass model leads to a system of dynamic equations for obtaining the free vibration. The solution of the resulting generalized eigenvalue problem is then presented. As an alternative to the solution of a single large problem, two approaches that simplify and reduce the problem are presented in the form of the Superelement Method and the Component Mode Synthesis Method. Illustrations are shown of finite element model types, substructurings of membrane-bar model, natural mode shapes, and vibration modes.

  • Supplemental Notes:
    • Conf. paper reprint; Paper presented at Conference on Sparse Matrices and their Uses, University of Reading, July 1980
  • Authors:
    • Catley, D
  • Publication Date: 1980

Media Info

  • Features: References;
  • Pagination: 9 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00661177
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Report/Paper Numbers: BSRA-NADV/28
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM