EVALUATION OF A METHOD FOR UPDATING THE CHOLESKY FACTORIZATION OF A BANDED FINITE ELEMENTS STIFFNESS NATRIX

A new method for updating the Cholesky factorization of a banded matrix modified by a rank one matrix of the same band width is tested and evaluated. This technique is utilized to update the factorization of a stiffness matrix and thus is used to incorporate and evaluate modifications to an existing structural design. Computer time and cost analyses which compare the updating program to a similar finite elements program with no updating capabilities are included. The updating technique provides a substantial improvement in computational efficiency

  • Supplemental Notes:
    • Presented by the New England Section of SNAME at their September 28, 1977 Meeting.
  • Corporate Authors:

    Society of Naval Architects and Marine Engineers

    601 Pavonia Avenue
    Jersey City, NJ  USA  07306-2907
  • Authors:
    • Gerber, D C
  • Publication Date: 1977-10

Media Info

  • Features: References;
  • Pagination: 29 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00173970
  • Record Type: Publication
  • Source Agency: Society of Naval Architects and Marine Engineers
  • Files: TRIS
  • Created Date: May 3 1978 12:00AM