COMPUTER APPLICATIONS IN HULL FORM AND STABILITY CALCULATIONS

All practicing naval architects are well aware of the benefits of modern computers in carrying out lengthy routine calculations. What is less often appreciated, however, is that computers now make possible the use of more sophisticated, or more precise, analytical techniques. The purpose of this paper is to present some of the advanced methods that are particularly adaptable to hull form and stability calculations, but which have not yet received widespread attention. There is no attempt here to spell out canned programs. The aim, rather, is to explain the theoretical basis of the calculations and leave it to the individual practitioner to build his own programs to suit his own particular needs. Among the several problem-solving techniques developed here, perhaps the most significant deals with the old question of transverse stability. Traditional calculations have always been based on the totally atypical assumption that the ship was at rest in still water. The realistic condition of operating in a seaway was shrugged off as being beyond practical computational possibility. That exucse is no longer valid, however, and the paper suggests a rigorous procedure that should lead to a universally acceptable criterion of stability.

• Supplemental Notes:
  • Presented at Great Lakes and Great Rivers Section of the Society of Naval Architects and Marine Engineers, Sturgeon Bay, Wisconsin, October 2, 1969
• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Naval Architects and Marine Engineers
  Ann Arbor, MI  United States  48109
• Authors:
  • Bhattacharyya, Rameswar
• Publication Date: 1969-9

Media Info

• Features: References;
• Pagination: 54 p.
• Serial:
  • Issue Number: 038

Subject/Index Terms

• TRT Terms: Hulls; Stability (Mechanics); Vehicle design
• Uncontrolled Terms: Ship design
• Old TRIS Terms: Hull forms; Transverse stability
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00007040
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 25 1972 12:00AM