LOADS ON TRANSVERSE MEMBERS IN OIL CARRIER TANKS

In this paper, which has been submitted for publication by Norwegian Maritime Research under the title "Sloshing Loads due to Random Pitch Motion", an account is given of tests on models representing oil- cargo centre tanks. The tests were some of the first random-motion experiments conducted with a ship-motion simulator recently acquired by Det Norske Veritas; It has six degrees of freedom. The primary objective was to determine long-term sloshing loads on a deck transverse and on a transverse bulkhead, in a relatively long tank, under random pitch excitation; secondary aims were the investigation of techniques for motion excitation and for the analysis of test data. The tests were performed with different pitch excitations representing a large variety of short-term sea states. Teh short-term sea states. The short-term results were combined to give long-term distribtuions for the sloshing loads. Different arrangements of the tank internal structure were used in the various tests. For comparison, some tests were made with a relatively short model tank. All tests were carried out with the tank 75% full. The experimental techniques are described, and the results, together with their application, are discussed and several conclusions are drawn. The tests were in general successful, but they were of too short a duration at the lowest pitch- excitation level.

  • Supplemental Notes:
    • Seminar on Liquid Sloshing.
  • Corporate Authors:

    Norske Veritas

    Grenseveien 92, Etterstad
    Oslo 6,   Norway 
  • Authors:
    • Mathisen, J
  • Publication Date: 0

Media Info

  • Features: References;
  • Pagination: 40 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00152583
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Report/Paper Numbers: Paper No. 7
  • Files: TRIS
  • Created Date: May 11 1977 12:00AM