Multiattribute decision making methodology in the concept design of tankers and bulk-carriers

Čudina, Predrag and Žanić, Vedran and Prebeg, Pero (2010) Multiattribute decision making methodology in the concept design of tankers and bulk-carriers. = Multiattribute decision making methodology in the concept design of tankers and bulk-carriers. In: 11th International Symposium on Practical Design of Ships and Other Floating Structures, PRADS 2010, 19.-24.09.2010., Rio de Janeiro; Brazil.

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An improved methodology of decision making for ship concept design, with the related design procedures and mathematical models, is presented. The mathematical model includes optimization of the main newbuilding characteristics as well as the optimization of its commercial effects. The Multiattribute decision making method is applied and the ship design analysis model is inbuilt into the decision making shell DeMak Each attribute is defined by the membership grade function based on fuzzy set theory. The consistent relative significance of attributes is obtained as an eigenvector of the subjective decision making matrix (AHP). Inadequate information about the configuration of the feasible designs' subspace is overcome by sequential adaptive generation of design points in the feasible region (via e.g. adaptive MC method, MOPSO or MOGA). The concept of nondominated designs is used for filtering Pareto solutions. In practical applications to the general design of tanker and bulk-carrier ships, the developed design procedure and the associated mathematical models for the multi-attribute design synthesis have resulted in a considerable increase of the vessel's quality measures. It makes this design approach superior to traditional ship design and ranks it among promising approaches for those ship types in the concept design phase. The application of the method is presented for the concept design of Capesize bulk-carrier. © 2010 COPPE/UFRJ.

Item Type: Conference or Workshop Item (Lecture)
Keywords (Croatian): Bulk carrier; Concept design phase; Concept designs; Decision making matrix; Decision support problem; Design approaches; Design points; Design procedure; Design synthesis; Feasible design; Feasible regions; Membership grade function; Multi attribute decision making; Multi objective optimizations (MOO); Multi-attributes; Pareto solution; Quality measures; Relative significance of attribute; Ship concepts; Ship designs; Decision making; Decision support systems; Filtration; Fuzzy set theory; Mathematical models; Multiobjective optimization; Shipbuilding; Tankers (ships); Design
Subjects: TECHNICAL SCIENCE > Shipbuilding
Divisions: 600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science: No
Indexed in Current Contents: No
Citations SCOPUS: 3 (25.10.2017.)
Date Deposited: 16 Apr 2015 10:24
Last Modified: 25 Oct 2017 08:15

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