PRELIMINARY DESIGN USING THE COMPUTER

The Authors discuss the possibilities of using computers in preliminary ship-design, i.e. design up to the stage where the designer or owner can decide which of several alternatives to develop further. This is a field in which the mini-computer is likely to bring considerable benefit. The paper, which, in view of offshore operational requirements, places some emphasis on seakeeping behaviour, is arranged under the main headings:--(1) The Use of Computers for Initial Design Calculations; (2) Hydrostatic and Stability Calculations; (3) Computer Lines Generation and Fairing; and (4) Seakeeping Performance Prediction. In their concluding remarks, the Authors mention that, with a simple language such as BASIC, programs written for the mini-computer can be similar, apart from size and store requirements, to those written for large main-frame machines, and represent important advances on the earlier programs. Thus, the present-day programs can be made much more flexible than the hand calculations they replace, the calculations can be based on techniques outside the knowledge of the non-specialist, and small-scale theoretical models, devised to aid the initial design process, can replace empirical "rules" by soundly-based but simplified methods of comparable accuracy. Ship types are changing rapidly, and a suitable basis ship may not be available as a source of design data; in such circumstances, the ability to create ad hoc procedures quickly and to apply traditional calculations at an earlier point in the design sequence can greatly benefit the designer. Within the smaller companies building a wide variety of small vessels, there would seem to be much scope for a more active use of computer techniques in design. Order for BSRA as No. 50,617.

  • Supplemental Notes:
    • Third International Offshore Craft Conference, London, Sept. 1978, Day 3, Paper No. 1.
  • Corporate Authors:

    International Offshore Craft Conference (3rd)

    London,   England 
  • Authors:
    • Wellicome, J F
    • Weynberg, P A
    • Wilson, P A
  • Publication Date: 1978

Media Info

  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00196028
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Jul 31 1979 12:00AM