FEASIBILITY STUDY OF SPRINGING MODEL TESTS OF A GREAT LAKES BULK CARRIER

A feasibility study is described in which springing bending moment response of a 1000-ft ore ship model was measured in the Robinson Model Basin at Webb Institute of Naval Architecture. Regular waves of length between 6 and 14 inches were generated to excite a 1:144-scale model hinged at midships over a range of forward speeds between 1.0 and 4.5 ft/sec. Significant springing was obtained under resonant conditions which corresponded to 39.6 and 19.5 rad./sec., respectively, for each of the connecting beams used. Analytical solution of the model springing phenomenon is also given using Goodman's theory, and correlation between experimental and theoretical results is shown to be encouraging. The need for more extensive experimental studies is indicated.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0020868X
• Corporate Authors:

  International Periodical Press

  193 Heemraadssingel
  Rotterdam,   Netherlands 
• Authors:
  • Hoffman, D
  • Van Hoof, R
• Publication Date: 1973-3

Media Info

• Serial:
  • International Shipbuilding Progress
  • Volume: 20
  • Issue Number: 223
  • Publisher: IOS Press
  • ISSN: 0020-868X
  • Serial URL: http://www.iospress.nl/journal/international-shipbuilding-progress/

Subject/Index Terms

• TRT Terms: Bending moments; Bulk carriers; Hulls; Waves
• Old TRIS Terms: Hull bending moments; Hull springing; Regular waves; Wave effects
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00046135
• Record Type: Publication
• Source Agency: International Periodical Press
• Files: TRIS
• Created Date: Sep 18 1973 12:00AM