Optimum Design of the Power Yacht based on Micro-Genetic Algorithms

摘要：

The optimum design for bow structure of power yacht belongs to the nonlinear constrained optimization problem.The determination of scantlings for the bow structure is a very important matter out of whole structural design process of the power yacht.The proposed design results are produced with the use of Real-coded Micro-Genetic Algorithm including evaluation Lloyd’s Register high speed craft guideline,so that the nominal limiting stress requirement can be satisfied.In the present paper,the minimum weight design of bow structure on the power yacht was carried out based on the finite element analysis.The target model for design optimization is a bow structure of power yacht made by high tensile steel.The weight of bow structure and the main dimensions of structural members are chosen as an objective function and design variable,respectively.During optimization procedure,finite element analysis was performed to determine the constraint parameters at each iteration step in optimization loop.Optimization results were compared with a pre-existing design and it was possible to reduce approximately 19 percents of the high tensile steel weight of bow structure for power yacht.

关键词： Real-coded Micro-Genetic Algorithm Buckling High Tensile Steel (H.T.S) Finite Element Analysis Local strength Minimum weight design

作者: Yunyoung Kim Joo-Shin Park Gyoung-Woo Lee

作者单位: Department of Naval Architecture & Ocean Engineering,Mokpo National Maritime University,KOREA Department of Naval Architecture & Ocean Engineering,Osaka University,JAPAN

会议类型: 国际会议

会议名称: International Conference on Modelling,Identification and Control(模拟、鉴定、控制国际会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）