Direct prismatic coefficient variation to hull form surface
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
The initial ship design process aims to optimize the hull form to enhance ship efficiency. During this phase, hull form variations are executed based on a reference ship to meet shipowner requirements, such as altering the CP (prismatic coefficient) to adjust the section lines. Once these variations are made, a surface is generated. However, this iterative process can be time-consuming as the surface creation must be done manually each time. Thus, we propose a method to directly apply CP variation onto the hull form surface, setting the variated section line as a constraint. In this study, the proposed method is employed to modify the hull form surface to meet CP requirements. The section lines of the modified surface are then extracted to validate the results. This streamlines in the initial hull form design, reduces the overall design time, and yields high-quality hull form surfaces efficiently.
Abstract
The initial ship design process aims to optimize the hull form to enhance ship efficiency. During this phase, hull form variations are executed based on a reference ship to meet shipowner requirements, such as altering the CP (prismatic coefficient) to adjust the section lines. Once these variations are made, a surface is generated. However, this iterative process can be time-consuming as the surface creation must be done manually each time. Thus, we propose a method to directly apply CP variation onto the hull form surface, setting the variated section line as a constraint. In this study, the proposed method is employed to modify the hull form surface to meet CP requirements. The section lines of the modified surface are then extracted to validate the results. This streamlines in the initial hull form design, reduces the overall design time, and yields high-quality hull form surfaces efficiently.
참고문헌 (30)
- Cheng, X., "Hull surface modification for ship resistance performance optimization based on Delaunay triangulation", Ocean Eng, 153, pp.333~344 (2018)
- Cho, Y., "Improvement of hull form for an 1,800 TEU containership toward reduced fuel consumption under in-service conditions", Int. J. Nav. Archit. Ocean Eng, 15, pp.100520~ (2023)[DOI]
- Copped´e, A., "A combined approach based on subdivision surface and free form deformation for smart ship hull form design and variation", Ships Offshore Struct, 13, pp.769~778 (2018)
- Farin, G., "Curves and Surfaces for Computer-Aided Geometric Design" (1993), Academic Press
- Farin, G., "The Essentials of CAGD", pp.2000, AK Peters
- Hong, Z. C., "Self-blending method for hull form modification and optimization", Ocean Eng, 146, pp.59~69 (2017)
- Hu, S. M., "Modifying the shape of NURBS surfaces with geometric constraints", Comput. -Aided Des, 33, pp.903~912 (2001)[DOI]
- Kang, J.Y, "Application of morphing technique with mesh-merging in rapid hull form generation", Int. J. Nav. Archit. Ocean Eng, 4, pp.228~240 (2012)[DOI]
- Kim, H., "A new surface modification approach for CFD-based hull form optimization", J. Hydrodyn, 22, pp.503~508 (2010)
- Lackenby, H., "On the systematic geometrical variation of ship forms", Trans. R. Inst. Nav (1950)
- Liu, X., "Constraint-based NURBS surfaces manipulation", 2009 International Workshop on Intelligent Systems and Applications, pp.1~4 (2009), IEEE
- Liu, X., "A cross-entropy algorithm based on Quasi-Monte Carlo estimation and its application in hull form optimization", Int. J. Nav. Archit. Ocean Eng, 13, pp.115~125 (2021)[DOI]
- Luong, Q. P., "Surface modification by superimposing piecewise shape function satisfying hull variation given by arbitrary characteristic curve on surface", J. Comput. Des. Eng, 8, pp.1125~1140 (2021)[DOI]
- Luong, Q. -P., "An approach for multi-patch surface modification with a curve constraint satisfying convergent G 1 continuity", J. Comput. Des. Eng, 9, pp.2073~2088 (2022)
- Ma, Y., "Physically-based NURBS surface editing with curves", Comput. -Aided Des. Appl, 9, pp.361~374 (2012)
- Michalik, P., "Constraint-based design of B-spline surfaces from curves", Proceedings of the Ninth ACM Symposium on Solid Modeling and Applications, pp.213~223 (2004)
- Nazemian, A., "Multi-objective optimization of ship hull modification based on resistance and wake field improvement: combination of adjoint solver and CAD-CFD-based approach", J. Braz. Soc. Mech. Sci. Eng, 44 (2022)[DOI]
- Nowacki, H., "Parametric design of complex hull forms", Journal of Ship and Ocean Technology, 9(1), pp.47~63 (2005)
- Peri, D., "Design optimization of ship hulls via CFD techniques", J. Ship Res, 45(2), pp.140~149 (2001)
- Piegl, L., "Algorithm for approximate nurbs skinning", Comput. -Aided Des, 28, pp.699~706 (1996)[DOI]
- Piegl, L., "The NURBS Book" (1996), Springer Science & Business Media
- Pourazady, M., "Direct manipulations of NURBS surfaces subjected to geometric constraints", Comput. Graph, 30, pp.598~609 (2006)
- Qi, X., "A NURBS-based hull surface modification method for hydrodynamic optimization", ISOPE Pacific, 2018, ~[DOI]
- Roh, M. -I., "Computational Ship Design" (2018), Springer
- Sauvage, B., "Detail preserving deformation of B-spline surfaces with volume constraint", Comput. Aided Geom. Des, 25, pp.678~696 (2008)
- Sederberg, T. W., "Free-form deformation of solid geometric models", SIGGRAPH Comput. Graph, 20(4), pp.151~160 (1986)[DOI]
- Son, E. Y., "Entrance and run angle variations of hull form preserving the prismatic coefficient", Int. J. Nav. Archit. Ocean Eng, 15 (2023)[DOI]
- Wang, H., "Multiple-points constraints based deformation for NURBS surfaces", 2009 Second International Conference on Intelligent Computation Technology and Automation, pp.554~557 (2009), IEEE
- Xu, Y., "Surface Deformation under Area Constraints", Computer-Aided Des. Appl, 6(5), pp.711~719 (2009)[DOI]
- Yu, J.-W, "Bow hull-form optimization in waves of a 66,000 DWT bulk carrier", Int. J. Nav. Archit. Ocean Eng, 9, pp.499~508 (2017)[DOI]