CONSISTENT MASS MATRIX IN FLUID SLOSHING PROBLEMS

The problems involving the free-surface vibration of fluids in a container are explored. It is shown that a derivation of the mass matrix for such sloshing problems based on lumping the effective vibration mass at various nodes gives much inferior results in comparison to a consistent mass matrix. The consistent mass matrix is of the same bandwidth as the stiffness matrix whereas the lumped mass approach has only the diagonal terms nonzero. Thus, a consistent mass formulation implies a time penalty on computations.

  • Corporate Authors:

    American Institute of Aeronautics and Astronautics

    1290 Avenue of the Americas
    New York, NY  United States  10019
  • Authors:
    • Steven, G P
  • Publication Date: 1976-2

Media Info

  • Features: References;
  • Pagination: p. 245-247
  • Serial:
    • AIAA Journal
    • Volume: 14
    • Issue Number: 2
    • Publisher: American Institute of Aeronautics and Astronautics

Subject/Index Terms

Filing Info

  • Accession Number: 00148572
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Feb 23 1977 12:00AM