Earticle

초록

영어

The purpose of this study was to develop an optimized hull-form of a coastal fishing vessel operating at high speed. In order to achieve the purpose of the study, HOTBOAT, that can perform an automatic hull-form optimal design of a coastal fishing vessel, was developed. HOTBOAT was composed of an objective function estimation algorithm and an optimization algorithm and a hull-form modification algorithm. In this study, the wave-making resistance was selected as an objective function and the potential-based panel method was applied to predict the objective function. SQP(sequential quadratic programming) method were adopted to predict the optimal direction and answer. Bell-shaped hull-form modification function method and NURBS(non-uniform rational B-spline) geometry modeling method were applied to modify the hull-form during the whole optimization process. HOTBOAT was applied to develop the optimal hull-form of a coastal fishing vessel with minimum wave resistance. The initial hull-form of the coastal fishing vessel was compared with the optimal hull-form. As a result of hull-form optimization, a coastal fishing vessel with a reduction of about 30% was developed compared with the initial hull-form and the displacement and the wetted surface area of the optimal hull-form was decreased to less than about 1% in comparison with the initial hull-form.

목차

ABSTRACT
1. 서론
2. HOTBOAT
2.1 최적화 모듈(OPTIMUS)
2.2 유동해석 모듈(PANWAVE)
2.3 선형변경 모듈(OCTOPUS)
2.4 국소변경 모듈(HOTPART)
2.5 모니터링 모듈(HOTVIEW)
3. 수치해석 및 토론
4. 결론
References

키워드

연안어선 선형최적설계 자동화 선형자동변경알고리즘 최적화 알고리즘 전산유체역학 조파저항성능예측 Coastal fishing vessel Hull-form optimal design automation Hull- form automatic modification algorithm Optimization algorithm Computational fluid dynamics Wave-resistance performance prediction

저자

• 최희종 [ Hee-Jong Choi | Member, Department of Naval Architecture and Ocean Engineering, Chonnam National University ] Corresponding Author

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