Fundamental Study for the Development of an Optimum Hull Form |
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최적선형개발에 대한 기초연구 |
최희종,전호환,정석호 |
부산대학교 조선해양공학과,부산대학교 조선해양공학과,STX 조선주식회사 특수사업본부 |
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© 2004 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
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Keywords:
Optimum Hull Form, Minimum Resistance, Panel Method, Sequential Quadratic Programming, Wigley Hull |
핵심용어:
최적선형, 최소저항, 패널법, 순차이차계획법, 위글리선형 |
Abstract |
A design procedure for a ship with minimum total resistance has been developed using a numerical optimization method called SQP(sequential quadratic programming) to search for different optimal hull forms. The frictional resistance has been estimated using the ITTC 1957 model-ship correlation line formula, and the wave resistance has been evaluated using a potential-flow panel method that is based on Rankine sources with nonlinear free surface boundary conditions. The geometry of a hull surface has been modified using B-spline surface patches, during the whole optimization process. The numerical analyses have been carried out for the modified Wilgey hull at three different speeds (Fn=0.25, 0.316, 0.408), and the calculation results were compared. |
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