ON DECK WETNESS AND IMPULSIVE WATER-PRESSURES ACTING ON THE DECK IN HEAD SEAS

To investigate deck wetness and impulsive water-pressures due to shipping water in rough seas, tests were conducted on models in head seas in a towing tank. The Authors describe these tests, present the results, and discuss the relationships between the probability of deck wetness and the significant wave-height, mean wave-period, ship speed, significant values of ship motions, and relative bow-motions. Relationships between peak values of implusive pressures, relative bow-motion, and impact velocity of the water are also discussed. An empirical expression for dynamic swell-up proposed by R. Tasaki was used in the prediction of the probability of deck wetness, and the results are compared with these experimental results. Some recorded pattens of impulsive water-pressures are discussed in detail. Order from: BSRA as No. 47,939.

  • Availability:
  • Corporate Authors:

    Society of Naval Architects of Japan

    15-16, Toranomon, 1-chome, Minato-ku
    Tokyo,   Japan 
  • Authors:
    • Takezawa, S
    • Kobayashi, K
  • Publication Date: 1977-6

Language

  • Japanese

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00174256
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: May 31 1978 12:00AM