EXPERIMENTAL STUDY ON COUPLED MOTIONS OF SHIP AND TANK LIQUID IN WAVES

An experimental study has been performed into the dynamic effect of tank free surfaces on the motion of a ship in waves. Experimental data were obtained on anti-rolling tanks, slack loaded tanks of a liquefied gas carrier, spherical and rectangular tanks, and cargo holds partially filled with sea water. A motion prediction method was developed for a ship equipped with multiple U-tanks, and its accuracy was confirmed by the experiments on anti-rolling tanks. This U-tank approximation was then applied to a spherical tank and a rectangular tank, and reasonable agreement with the experimental results was again obtained. In the case of slack loaded tanks in a liquefied gas carrier it was found that the rolling motion is increased at frequencies near the natural period of the tank by the free surface effects.

• Supplemental Notes:
  • West Japan Soc. Nav. Arch. Trans., No. 71 (1986), p. 131 (March) [15 pp., 6 ref., 18 fig., 1 tab.]
• Authors:
  • TAKAHASHI, T
  • Imaizumi, Y
• Publication Date: 1986

Language

• Japanese

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00690335
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM