PREDICTION OF WAVE-INDUCED ROLLING RESPONSES BY A TIME-DOMAIN STRIP THEORY

This paper presents a time-domain strip theory formulation for predicting wave loads and 5-DOF motions of a ship at constant forward speed and arbitrary wave heading. The hydrodynamic memory effect due to the free surface is approximated by a set of higher-order ordinary differential equations, which can automatically include the non-linear memory effect and the momentum-slamming force. The formulation is generalized from the time-domain strip theory for vertical wave loads and ship responses. Based on time-domain strip theory formulation, a linear method for predicting wave-induced anti-symmetric motions and loads of rigid-body ships is developed. Numerical calculations are presented for a panamax container ship for the roll motion and torsional moment and are compared with experimental results.

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 839-845
  • Serial:
    • Volume: 2

Subject/Index Terms

Filing Info

  • Accession Number: 00821324
  • Record Type: Publication
  • ISBN: 0080439500
  • Files: TRIS
  • Created Date: Dec 10 2002 12:00AM