Vibration control in ship structures is a major concern for those who design and operate vessels. Excessive vibrations can lead to fatigue failure in structural members and can adversely affect the efficiency of operating crews. Ignoring excitations caused by rotating machinery or propellers, for example, may lead to a vessel design that is unsuitable for service. This guide is intended to provide the reader with a method of integrating existing technology into the ship design cycle for the purpose of avoiding ship vibration problems. It addresses the major components over which control can be exercised in the design phase, and which will generally minimize most local vibration problems. These components include: the hull girder; major structural elements; main propulsion systems including propeller selection; stern design; and underwater appendages. Excitation forces, including those generated by propulsion systems, as well as the operational environment that a ship's propeller and hull girder experience, are also addressed. Transient excitation resulting from heavy seas and collision impace, however, are not. A procedure is presented to help determine the natural frequencies of major shipboard elements at the preliminary design stage, predict anticipated problems and facilitate the selection of propulsion system components, stern configuration and hull structure.

  • Supplemental Notes:
    • Report; A Ship Structure Committee Report
  • Corporate Authors:

    United States Coast Guard

    2100 Second Street, SW
    Washington, DC  United States  20593

    American Bureau of Shipping

    ABS Plaza, 16855 Northchase Drive
    Houston, TX  United States  77060
  • Authors:
    • Noonan, E F
  • Publication Date: 1990

Media Info

  • Features: References;
  • Pagination: Various p.

Subject/Index Terms

Filing Info

  • Accession Number: 00661889
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Report/Paper Numbers: SSC-350
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM