NUMERICAL SIMULATION AND ITS APPLICATION ON THE FALLING MOTION OF FREEFALL LIFEBOATS

Freefall lifeboat systems were developed in the 1970s as a lifesaving system that ensured safe and quick evacuation from a wrecked ship even in adverse weather conditions. The international regulations require that the system launch a lifeboat into the water without any harmful acceleration to occupants and that the boat effectively clears the ship. The falling motion of the boat is a pure dynamic phenomenon in the air and a mathematical model should be useful for describing it. No theoretical investigation, however, has yet been presented. In this paper the authors propose a numerical simulation method for this falling motion. After validating the method through experiments, they discuss the relation between the attitude and launching conditions. They further propose tentative critera for the safe entry of freefall lifeboats as an application of the method.

  • Availability:
  • Supplemental Notes:
    • Journal article
  • Authors:
    • Tasaki, R
    • Ogawa, Atsushi
    • Tsukino, Y
  • Publication Date: 1990-6

Language

  • Japanese

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00661072
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM