This paper is concerned with the combined motions of sway, roll and yaw of a ship in quartering seas. Such combined motions happen to be related to the dangerous situation leading up to capsize which is caused by the phenomena of pure loss of stability, parametric resonance and broaching-to. The problem here is the dynamic stability on the combined motions to obtain some guidance and insight into how to avoid the dangerous situations. The purpose of this paper is to analyze ship motion in dangerous situations. Equations of motion are derived for the analysis of the dynamic stability. The characteristic equation is presented for the dynamic stability with respect to the combined motions of sway, roll and yaw. The stable and unstable ranges of dynamic stability are computed and discussed for container ships. Finally numerical simulations are carried out to show unstable behaviours in limiting situation at zero frequency of encounter and in overtaking waves of low frequency of encounter for discussions.

  • Supplemental Notes:
    • STAB 94, 5th Intl Conf on Stability of Ships and Ocean Vehicles; 7-11 Nov 1994; Florida, USA. Sponsored by SNAME, USA and RINA, UK. Proc. Publ by Florida Inst Technology, USA. Vol 4, session 16 [17 p, 10 ref, 7 fig]
  • Authors:
    • Fujino, M
    • Kim, Y S
  • Publication Date: 1994


  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00717505
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM