A VERSATILE HULL-GENERATOR PROGRAM

Existing methods of computer-based ship-hull generation suffer from the fact that the algebraic functions are not sufficiently general to describe all practical hull forms of interest and that, at best, combinations of functions over specific portions of the hull surface might need to be used. Further difficulties stem from the problem of adequately defining what is essentially a multiple-valued surface. The technique outlined in this paper can be described as mode- based. That is, a library of practical hull forms is first created. The program then 'merges' or 'blends' these hulls from the database. In a sense, the hulls are formed by mixing the basic hulls in different proportions, in the same manner that one might create an infinite spectrum of colours from a small number of primary colours. The new method guarantees that reasonable hull forms will always be generated. Examples of the created hulls are presented in the paper. In addition, the influence of varying degrees of typical features, such as a bulbous bow, on the motions of high-speed vessels (designed in this manner) is addressed.

• Supplemental Notes:
  • Twenty-First Century Shipping, 11th Intl Maritime and Shipping Symposium; 6 Nov 1995; Sydney, Australia. Sponsored by Inst Marine Engrs (Sydney Branch), et al. Publ by Inst Marine Engrs (Sydney Branch), ISBN 0 646271113, p 140 [20 p, 22 ref, 9 fig]
• Authors:
  • Doctors, L J
• Publication Date: 1995

Language

• English

Subject/Index Terms

• TRT Terms: Computer aided design; Hulls; Naval architecture; Vehicle design
• Uncontrolled Terms: Ship design
• Old TRIS Terms: Hull form
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00733850
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Mar 27 1997 12:00AM