HYDROSTATIC LOADING AND STABILITY ANALYSIS OF STRUCTURES WITH LARGE DISPLACEMENTS

A method for the computation of hydrostatic forces on cable, truss, beam, plate and shell type structures is presented. A general large displacement formulation is assumed which allows for displacements and rotations of unlimited size. Equilibrating forces for nodal points as well as incremental force-displacement relationships are given. Various ways of making the geometric load matrix symmetric for incremental analysis is discussed. Alternative strategies for the incremental-iterative solution is also treated. A method for the determination of the hydrostatic stability of floating structures is suggested. Metacentres and centres of buoyancy for rotations about principal axes in the water plane are automatically computed. The paper presents three examples of applications: a pipe which is partially submerged, a full overturning of floating space frame and, finally, a hydrostatic stability analysis of a ship.

• Supplemental Notes:
  • Intl. J. Numerical Methods Engng., 22 (1986), p. 575 (Mar.) [21 pp., 15 ref., 12 fig.]
• Authors:
  • Bergan, P G
  • Mathisen, K M
• Publication Date: 1986

Language

• English

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00690043
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM