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Engineering with Computers

, Volume 31, Issue 1, pp 175–191 | Cite as

Panel generation framework for seakeeping analysis of multiple bodies and offshore structures

  • Kwang Hee Ko
  • Jongho Lee
  • Min-Guk Seo
  • Kyong-Hwan Kim
  • Yonghwan Kim
Original Article
  • 379 Downloads

Abstract

This paper presents a panel generation framework for seakeeping analysis of multiple bodies and offshore structures. The configurations of multiple bodies and offshore structures are different from those of a single ship. In particular, the topological structure of the free surfaces becomes complicated due to the multiple floating bodies, resulting in multiple classifications for the free surfaces based on their genus. The multi-body configuration consists of two floating bodies placed in two configurations, i.e., side by side and tandem, which would generate two holes in the free surface. For the offshore structure case, multiple holes are generated in the free-surface domain due to the legs of the offshore structure. In this work, strategies for generating body and free-surface panels are provided, and the results are analyzed. A software prototype that implements the proposed methods is developed to provide efficient panel generation for multiple bodies and offshore structures. Examples demonstrate that the proposed framework can be successfully used for seakeeping analysis of multiple bodies and offshore structures.

Keywords

Multi-body Offshore structure Panel generation Seakeeping Analysis 

Notes

Acknowledgments

This research was supported by the Basic Research Project through a grant provided by GIST in 2012 and the WISH-OFFSHORE joint industry project, which is funded by several shipbuilding industry and ship classification societies. These supports are gratefully acknowledged.

References

  1. 1.
    Lin WM, Meinhold M, Salvensen N, Yue DK (1994) Large-amplitude motions and wave loads for ship design. 20th symposium on naval hydrodynamics, pp 205–206Google Scholar
  2. 2.
    Huang Y (1998) Nonlinear ship motions by a Rankine panel method. PhD thesis, Massachusetts Institute of Technology, CambridgeGoogle Scholar
  3. 3.
    Lee CH (1995) WAMIT theory manual. MIT Report 95-2, Department of Ocean Engineering, Massachusetts Institute of Technology, CambridgeGoogle Scholar
  4. 4.
    Kim Y, Kim KH, Song MJ (2010) Numerical analysis and validation of nonlinear motions and loads on ships in waves. The 11th international symposium on practical design of ships and other floating structures, Graduate School and Research in Engineering Federal University of Rio de Janeiro, Rio de Janeiro, BrazilGoogle Scholar
  5. 5.
    Ko KH, Park T, Kim KH, Kim Y, Yoon DH (2011) Development of panel generation system for seakeeping analysis. Comput Aided Des 43(8):848–862CrossRefGoogle Scholar
  6. 6.
    Gie TS, de Boom WC (1981) The wave induced motions of a tension leg platform in deep water. Offshore Technology ConferenceGoogle Scholar
  7. 7.
    Taylor RT, Jefferys ER (1986) Variability of hydrodynamic load predictions for a tension leg platform. Ocean Eng 13(5):449–490CrossRefGoogle Scholar
  8. 8.
    Hong SY, Kim JH, Cho SK, Choi YR, Kim YS (2005) Numerical and experimental study on hydrodynamic interaction of side-by-side moored multiple vessels. Ocean Eng 32(7):783–801CrossRefGoogle Scholar
  9. 9.
    Nagakura S, Noguchi S, Kaneda K, Yamashita H, Cingoski V (2001) Automatic quadrilateral mesh generation for FEM using dynamic bubble system. IEEE Trans Magn 37(5):3522–3525CrossRefGoogle Scholar
  10. 10.
    Borouchaki H, Frey PJ (1998) Adaptive triangular-quadrilateral mesh generation. Int J Numer Meth Eng 41:915–934CrossRefMATHMathSciNetGoogle Scholar
  11. 11.
    Nowottny D (1997) Quadrilateral mesh generation via geometrically optimized domain decomposition. In: Proceedings of the sixth international mesh round table, Park City, UtahGoogle Scholar
  12. 12.
    Tam TKH, Armstrong CG (1991) 2D finite element mesh generation by medial axis subdivision. Adv Eng Softw 13(5–6):313–324MATHGoogle Scholar
  13. 13.
    Joe B (1995) Quadrilateral mesh generation in polygonal regions. Comput Aided Des 27(3):209–222CrossRefMATHGoogle Scholar
  14. 14.
    Blaker TD, Stephenson MB (1991) Paving: a new approach to automated quadrilateral mesh generation. Int J Numer Meth Eng 32(4):811–847CrossRefGoogle Scholar
  15. 15.
    Lee KY, Kim II, Cho DY, Kim TW (2003) An algorithm of automatic 2D quadrilateral mesh generation with line constraints. Comput Aided Des 35(12):1055–1068CrossRefGoogle Scholar
  16. 16.
    Kouh JS, Chau SW (1993) Computer-aided geometric design and panel generation for hull forms based on rational cubic Bezier curves. Comput Aided Geom Des 10(6):537–549CrossRefMATHMathSciNetGoogle Scholar
  17. 17.
    Ko KH (2010) Application of geometric modeling techniques to ship modeling and design. Int J Naval Archit Ocean Eng 2(4):177–182CrossRefGoogle Scholar
  18. 18.
    Bronsart R, Knieling G (2004) Automatic generation of a panel based representation of a ship hull surface for wave resistance calculation. In: 9th international symposium on practical design of ships and other floating structures (PRADS), Lübeck, GermanyGoogle Scholar
  19. 19.
    Jensen PS (1990) Automatic panel generation for seakeeping and wave resistance calculation. CFD and CAD in ship design. Elsevier, Amsterdam, pp 133–146Google Scholar
  20. 20.
    Thompson JF, Warsi ZUA, Mastin CWM (1982) Boundary-fitted coordinate systems for numerical solution of partial differential equations-a review. J Comput Phys 47:1–108CrossRefMATHMathSciNetGoogle Scholar
  21. 21.
    Patrikalakis NM, Maekawa T (2002) Shape interrogation for computer aided design and manufacturing. Springer, HeidelbergMATHGoogle Scholar
  22. 22.
    Kim Y, Kim KH, Kim JH, Kim TY, Seo MG, Kim Y (2011) Time-domain analysis of nonlinear motion responses and structural loads on ships and offshore structures: development of WISH programs. Int J Nav Archit Ocean Eng 3(1):37–52CrossRefMathSciNetGoogle Scholar

Copyright information

© Springer-Verlag London 2013

Authors and Affiliations

  • Kwang Hee Ko
    • 1
  • Jongho Lee
    • 1
  • Min-Guk Seo
    • 2
  • Kyong-Hwan Kim
    • 2
  • Yonghwan Kim
    • 2
  1. 1.School of MechatronicsGwangju Institute of Science and TechnologyGwangjuRepublic of Korea
  2. 2.Department of Naval Architecture and Ocean EngineeringSeoul National UniversitySeoulRepublic of Korea

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