A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for building spatial grid structure by any curved surface
A method for building a spatial grid structure by any curved surface is provided. The method comprises the steps of: receiving a three-dimensional curved surface imported by a user and a spatial grid model parameter set by the user, wherein the three-dimensional curved surface comprises a plane, a regular curved surface (a ruled surface and a curved surface), and a RURBS curved surface, and the grid model parameter comprises numbers Nu and Nv of divisions in directions of U and N and a grid thickness h; subdividing the three-dimensional surface into Nu*Nv small curved surfaces, organizing intersection point coordinates of U and V lines according to tree-shaped data, and connecting every two to acquire a first wire layer; obtaining a point that is on the three-dimension surface and is closest to a geometric center point of the small surfaces, moving the point by h in a normal direction of the three-dimension surface, and forming a pyramid by using the moved point as a vertex, to obtain a grid web layer; and organizing the vertex of the pyramid according to the tree-shaped data, and connecting every two to form a second wire layer. According to the method for building a spatial grid structure by any curved surface, a spatial grid structure can be built according to any curved surface, which helps modeling of a spatial grid (net, mesh shell) structural design.
Method for building spatial grid structure by any curved surface
A method for building a spatial grid structure by any curved surface is provided. The method comprises the steps of: receiving a three-dimensional curved surface imported by a user and a spatial grid model parameter set by the user, wherein the three-dimensional curved surface comprises a plane, a regular curved surface (a ruled surface and a curved surface), and a RURBS curved surface, and the grid model parameter comprises numbers Nu and Nv of divisions in directions of U and N and a grid thickness h; subdividing the three-dimensional surface into Nu*Nv small curved surfaces, organizing intersection point coordinates of U and V lines according to tree-shaped data, and connecting every two to acquire a first wire layer; obtaining a point that is on the three-dimension surface and is closest to a geometric center point of the small surfaces, moving the point by h in a normal direction of the three-dimension surface, and forming a pyramid by using the moved point as a vertex, to obtain a grid web layer; and organizing the vertex of the pyramid according to the tree-shaped data, and connecting every two to form a second wire layer. According to the method for building a spatial grid structure by any curved surface, a spatial grid structure can be built according to any curved surface, which helps modeling of a spatial grid (net, mesh shell) structural design.
Method for building spatial grid structure by any curved surface
LENG XINZHONG (author) / FEI JIANWEI (author) / CHENG LIN (author) / JIN HAI (author) / ZHU LUOJUN (author) / TONG YOUNA (author)
2016-02-03
Patent
Electronic Resource
English
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