大型油船中剖面结构的模糊优化设计

Fuzzy Optimum Design of The Tanker Midship Section

本文在Bellman-Zadeh模糊判决原理的基础上,阐述了寻求结构模糊优化问题最优解的最优水平法,对于具有动,静力约束的大型油船中剖面结构进行了模糊优化设计,方法简便有效,且能获得节省材料的效益,充分显示了现代设计方法的潜在能力。

The aim of this paper is to present the Optimum Level Technique based on fuzzy decision-making, in which the optimum solution of the fuzzy optimization problems in ship structures is obtained by one-step and without iterative process. Fuzzy optimum design of the tarker midship section with static and dynamic constraints using the proposed approach is then made. The illustrative numerical example given shows that fuzzy optimum design of ship structures by means of the Optimum Level Technique is very convenient and beneficial to saving the steel material. Introduction of fuzzy set theory to the field of structural optimization may be a potential contribution to the design philosophy of ship structures.