ON A STUDY OF THE LONGITUDINAL STRENGTH OF SHIPS WITH TORSIONAL AND HORIZONTAL DEFORMATIONS

In addition to the longitudinal bending and shear deformation of ships in the vertical plane, the effect of longitudinal bending and shear deformation in the horizontal plane coupled with the torsional deformation is particularly considered in the method of theoretical analysis. This theoretical analysis treats the ship as a beam shell with cross-section in which the actual structure of the ship is considered. Concerning the structural idealization, ships are divided into substructures with uniform cross-section and then each substructure is also divided into small strip elements. Further, the experiments are carried out, using a model of a container ship with large hatch openings. And it has been confirmed that the calculated results obtained through this method are in good agreement with the experimental results. The results of this investigations led to the following conclusions. In dealing with the longitudinal strength of container ships, considering the horizontal bending and torsion, the analytical method described here seems to be effective for practical use in designing ships. In the structural analysis of container ships, the cross decks between hatch openings should be treated as a reinforced member arresting the torsional deformation of the main hull instead of treating them as a part of it. And it is appropriate to adopt 1.0 as the fixedness of the end connection of cross decks for practical use in calculating the torsional strength of the main hull.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/05148499
• Corporate Authors:

  Society of Naval Architects of Japan

  23 Shiba-kotohiracho, Minato-ku
  Tokyo 135,   Japan 

  Society of Naval Architects of Japan

  15-16, Toranomon, 1-chome, Minato-ku
  Tokyo,   Japan 
• Authors:
  • Shimizu, S
  • Yashima, H
• Publication Date: 1974-6

Language

• Japanese

Media Info

• Features: References;
• Pagination: p. 239-257
• Serial:
  • Journal of the Society of Naval Architects of Japan
  • Volume: 135
  • ISSN: 0514-8499

Subject/Index Terms

• TRT Terms: Deformation; Hatch covers; Longitudinal strength; Torsion; Torsional strength
• Old TRIS Terms: Hatch stress; Torsional deformation
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00071555
• Record Type: Publication
• Source Agency: Society of Naval Architects of Japan
• Files: TRIS
• Created Date: Nov 12 1974 12:00AM