DESIGN OPTIMIZATION OF DECK STRUCTURES FOR RO/RO SHIP BY MULTILEVEL STRUCTURE TECHNIQUE

A three-level system for the structural optimization of complex ship structures is proposed. The top level covers the assembly of all substructures to determine the displacement and response sensitivities of the master nodes. The middle level is for the subproblem of the two-dimensional plane frame or of the grillage membrane in order to optimize the sectional value of structural members. The bottom level is for the subproblem of a simple beam or plate panel under given boundary conditions to find the optimum shape and dimensions of structural members. Each substructure can be separately optimized. The substructuring sensitivity technique can be used for the determination of search direction and for the approximation of optimum step size. As an example of the system's application, three different kinds of deck structures for a ro/ro ship are optimized.

• Supplemental Notes:
  • Conference paper
• Authors:
  • Hung, C F
  • Yen, S W
  • Chen, Y H
• Conference:
  • International Symposium on Practical Design of Ships and Mobile Units (PRADS), 4th
  • Location: Varna, Bulgaria
  • Date: 1989-10-23 to 1989-10-28
• Publication Date: 0

Media Info

• Features: References;
• Pagination: 9p.

Subject/Index Terms

• TRT Terms: Decks (Ships); Optimization; Roll on roll off ships; Ships; Structural design; Vehicle design
• Uncontrolled Terms: Ship design
• Old TRIS Terms: Design process; Ship structures
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00660489
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM