TOWARDS AN INTEGRATED PROCEDURE FOR THE MATHEMATICAL MODELLING OF SHIP VIBRATIONS

The capability now exists for modelling the vibration characteristics of the components of a ship at an early stage within the design timescale. The basic method used is the Finite Element Method, but alternative substructuring techniques are now available for reducing the size of the problem. The applicability of these alternative procedures is compared, based on detailed full-scale measurements, using natural and/or artificial excitation. Surfaces singularity methods have been employed to calculate the influence of the surrounding water and the fluid contained in internal compartments. Progress in surface definition methods and the application of interactive computer graphics to vibration analysis is reviewed. One successful approach, designated HULLSURF, is based on a bi-cubic B-spline formulation for surface patches. HULLSURF is a customised version of the more generally applicable BMT free form design software designated GENSURF. The paper reviews the above subject areas and discusses their integration to give a comprehensive vibration analysis capability which would be appropriate not only to ship vibrations but to more general structure.

• Supplemental Notes:
  • Polymodel 9, 9th Annual Conf. North East Polytechnics Mathematical Modelling & Computer Simulation Group, Newcastle upon Tyne, UK, 21-22 May 1986, p. 49 [26 pp., 27 ref., 2 tab., 10 fig.]
• Authors:
  • Catley, D
• Publication Date: 1986

Language

• English

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00691060
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM