HYDROELASTIC STUDY OF A SHIP EQUIPPED WITH AN ANTIPITCHING FIN

This paper presents the results of an experimental study to determine the seaworthiness characteristics and induced vibrations of a ship equipped with an antipitching fin. The mechanism of occurrence and the fundamental properties of the induced vibrations are examined from the hydroelasticity viewpoint. The effects of location, size, and configuration of an antipitching fin on ship motions and the induced vibrations are also discussed. The study consisted of tests on 5.5-ft. and 22-ft. mariner models equipped with fins. The majority of the tests were carried out in regular waves; however, tests in irregular waves were also conducted for a specific ship speed. A fin having holes of proper size and shape was found to be beneficial both for pitch and vibration reduction.

  • Supplemental Notes:
    • Conf. paper reprint; Paper presented at Annual Meeting, Society of Naval Architects and Marine Engineers, New York November 16-17, 1961
  • Authors:
    • Ochi, K M
  • Publication Date: 1961

Media Info

  • Features: References;
  • Pagination: 41 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00660835
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM