• Title/Summary/Keyword: Gregory 면조각보간방법

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Automatic mesh generation on ship hull surface (선체 곡면의 자동 요소화)

  • 윤태경;김동준
    • Journal of Ocean Engineering and Technology
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    • v.11 no.2
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    • pp.138-144
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    • 1997
  • This is describes the automatic mesh generation on the ship hull surface. At first ship hull is defined as a cillocation of composite surface patches which satisfy the geometic continuity between adjoining patches by using Gregory surface method. Node points that would be mesh points are ganerated by considering the surface curvature. The triangulation of the node points is by the combination of Ohtsubo's method and Choi's one. After triangulation, shape improvement and quadrilateralization is done with specific criterin. An application to the actual ship and the results are shown.

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Definition of Ship Hull using $GC^1$ Surface ([$GC^1$] 곡면을 이용한 선형의 표현)

  • J.S. Park;D.J. Kim
    • Journal of the Society of Naval Architects of Korea
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    • v.31 no.4
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    • pp.32-40
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    • 1994
  • This paper describes a smooth surface interpolating method of ship hull using a three-dimensional currie net that comes from the mesh curve fairing process. Geometric continuity(($GC^1$) is preserved across the boundary curve between patches. The three-dimensional curve net can have nonrectangular topologies, such as triangular and pentagonal topology. Among the boundary curve interpolation methods, Hermite blended Coons patch, Convex combination, and Gregory patch interpolation method are used to generate the ship hull surface. To check the fairness of the surface, the numerical method of surface/surface intersection problem is adopted. An application to an actual ship hull is given as an example.

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