A PRACTICAL METHOD FOR THE RATIONAL DESIGN OF SHIP STRUCTURES

A practical, rationally based method is presented for the automated optimum design of ship structures. The method required the development of (a) a rapid, design-oriented finite-element program for the analysis of ship structures; (b) a comprehensive mathematical model for the evaluation of the capability of the structure; and (c) a cost-effective optimization algorithm for the solution of a large, highly constrained, nonlinear redesign problem. These developments have been incorporated into a program called SHIPOPT. The efficiency and robustness of the method is illustrated by using it to determine the optimum design of a complete cargo hold of a general-purpose cargo ship. The overall dimensions and the design loads are the same as those used in the design of the very successful SD14 series of ships. The redesign problem contains 94 variables, a nonlinear objective function, and over 500 constraints of which approximately half are non-linear. Program SHIPOPT required approximately eight minutes of central procssing unit time on a CDC CYBER 171 to determine the optimium design.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00224502
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Hughes, O F
  • Mistree, F
  • Zanic, V
• Publication Date: 1980-6

Media Info

• Features: References;
• Pagination: p. 101-113
• Serial:
  • Journal of Ship Research
  • Volume: 24
  • Issue Number: 2
  • Publisher: Society of Naval Architects and Marine Engineers
  • ISSN: 0022-4502
  • EISSN: 1542-0604
  • Serial URL: https://onepetro.org/jsr

Subject/Index Terms

• TRT Terms: Computer aided design; Constraints; Cost effectiveness; Design; Finite element method; Mathematical models; Naval architecture; Ships; Stability analysis; Structural analysis; Structural design; Structural mechanics; Vehicle design
• Uncontrolled Terms: Design constraints; Ship design; Ship models; Structural response
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00314758
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 27 1980 12:00AM