Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Dynamic Interaction of Waves with a Moored Structure

계류된 구조물에 작용하는 파도의 동적작용에 대하여

  • Published : 1992.12.01
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Abstract

This paper presents the method of numerical analysis concerned with the hydropdynamic forces and moments of the floating bodies exerted by waves. The analytic methods of hydrodynamic wave forces and moments for large volume structures are generally classified into four categories ; the strip method, the boundary element method, the finite element method, and the potential matching method. In the case of the comparatively large structures, diffraction theory can be applied. However, there are no application limits of diffraction theory which have been known concerning with the analytic method of the rectangular structures. In this paper, the two-dimensional B.E.M. is treated for a moored small rectangular structure in order to evaluate applicability of diffraction theory. Numerical calculation is carried out for the structure. The results are compared with some other ones for verification. The result shows that diffraction theory is applicable to structures smaller than 0.15 in the ratio of the representative structure length d to wave length L for rectangular ones.

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References

  1. Numerical Methods in Offshore Engineering Hydrodynamic Loading of Large Offshore Structure:Three-Dimensional Source Distribution Methods Garrison,C.J.
  2. Proc. of the Society of Naval Architects of Japan no.133 Hydrodynamic Pressures on a Restrained Ship in Oblique Waves Shoichi Nakamura(et al.)
  3. Proc. of the Society of Naval Architects of Japan no.134 A Study of Motion and Strength of Floating Marine Structure in Waves Toshiro Suhara(et al.)
  4. T.M. No.69, Beach Erosion Board Wave Force on Piles: Diffraction Theory MacCamy,R.C.;R.A.Fuchs
  5. Boss v.74 Motions of Large Structures in Waves at Zero Froude Number, Proc. of Intl. Symposium on Dynamics of Marine Vehicles and Structures in Waves Faltinsen,O.M.;F.C.Michelsen
  6. The Finite Element Method for Determining Fluid Loadings on Rigid Structures Two and Three-dimensional Formulations, Numerical Methods on Offshore Engineering Zienkiewicz,O.C.;P.Bettes;D.W.Kelly
  7. Proc. 32nd Japanese Conference on Coastal Engineering On the Motions of a Moored Rectangular Body by F.E.M. Imai Kanji(et al.)
  8. Proc. J.S.C.E. v.202 Scattering of Surface Waves and the Motions of a Rectangular Body by Waves in Finite Water Depth Ijima,T.;Y.Tabuchi;Y.Yumura
  9. Study on the Motion Characteristics and Mooring System of Box-typed Structures v.179 no.346 Naval Architecture Institution of Japan
  10. Surface Waves, in Handbook of Phisics, Fluid Dynamics Ⅲ Laiton,E.V.;J.V.Wehausen
  11. The Applied Dynamics of Ocean Surface Waves Mei,C.C.