MOTIONS AND SAFETY OF FLOATING BODIES IN A WAVE GROUP

Survivability of ships or offshore structures in severe sea conditions is often evaluated from their behaviour in a single extremely large wave. However, a floating body can fall into a more dangerous situation when it encounters a group of several successive waves of fairly large height (a wave group), with unfortunate time interval. In this paper, deterministic as well as statistical analyses of motions of floating bodies in a wave group are carried out. It is shown that the successive waves and the resultant motions can be treated as a Markov chain and thus the well established Markov theory can be applied for the analyses. Deck wetness due to the successive encounter of a floating body to a wave group is examined as one of the examples in which the successiveness of incoming waves and the resultant motions could endanger the safety of a floating body.

  • Supplemental Notes:
    • Trans Soc Naval Arch West Japan, n 89, March 1995, p 91 [12 p, 4 ref, 3 tab, 17 fig]
  • Authors:
    • Kagemoto, H
    • Fujino, M
    • Okabe, T
  • Publication Date: 1995

Language

  • Japanese

Subject/Index Terms

Filing Info

  • Accession Number: 00717027
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM