REPORT OF SLOSHING PILOT TEST

Recently, the stress analysis of steel structures is widely being carried out by finite element method as a result of remarkable progress being made in computers. To obtain an accurate distribution of stress, it is necessary to investigate the external forces more in detail. Among many external forces, there is the problem of sloshing. This problem may be important in case of slack loading into the tanks of oil carriers having no swash bulkhead or in case of the tanks of LNG carriers, in which cooling liquids are remaining. This experiment is the first step of model tests toward sloshing problem. Models of oil carrier and those of membrane tank of LNG carrier were chosen in this test. From this pilot test, the following conclusions may be drawn: 1) The pressure transducer, etc. were reliable enough measure the impact pressures. 2) The natural periods of LNG carriers models, which have no internal members, have coincided with theoretical value in this experiment, but in case of oil carriers's models, the values obtained were little larger than those of the theoretical values. 3) In case of the LNG carrier' models, large impact pressures may occur on the tank walls. 4) In case of the oil carrier model without swash bulkhead, very large impact pressures may occur on the horizontal girder, but in the model with a swash bulkhead, the pressure will be remarkably reduced.

  • Corporate Authors:

    Mitsui Shipbuilding and Engineering Company, Ltd

    6-4 Tsukiji, 5-chome, Chuo-ku
    Tokyo,   Japan 
  • Authors:
    • WATANABE, T
  • Publication Date: 1973

Media Info

  • Pagination: p. 52-63
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00084491
  • Record Type: Publication
  • Source Agency: Japan Shipbuilding Industry Foundation Library
  • Files: TRIS
  • Created Date: May 7 1975 12:00AM