Method for creating three-dimensional finite element mesh

A finite element and mesh technology, applied in the field of generating 3D finite element meshes, can solve the problems of complex hexahedral mesh process, 3D mesh modeling taking a lot of time, and difficulty in the field of engineering design.
CN1991846AActive Publication Date: 2007-07-04靖江德方科技服务有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
靖江德方科技服务有限公司
Publication Date
2007-07-04

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Abstract

The invention belongs to fields of computer image processing; a method of generating three-dimensional finite element grid is disclosed that includes steps as following: 101. Two-dimension surface grid is divided on surface of the three-dimensional model of object noumenon; 102. The noumenon basic grid which encompasses the three-dimensional model is generated by the noumenon basic grid built by projection borderline; 103. The Two-dimension surface grid is inserted into the back of the noumenon basic grid, eliminating the noumenon grid which is out of the noumenon surface grid; the noumenon three-dimensional grid needed is obtained. Because said technical project is adopted, the Two-dimension surface grid and the noumenon basic grid are obtained easily, for adopting the penetration algorithm, the time of generating final noumenon grid is decreased than traditional approach, quantity of work in several months can be accomplished within several days even several hours. At the same time, because the three-dimensional noumenon grid generated is hexahedron grid, the quantity of grid id higher, the calculation error can be improved greatly.
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Description

[Technical Field]

[0001] The present invention relates to computer image processing technology, in particular to a method for generating three-dimensional finite element meshes. [Background technique]

[0002] In the production of various manufacturing industries, such as the design and manufacturing process of automobile products, it is necessary to carry out force and deformation analysis, fluid fluidity analysis, or electromagnetic field analysis of structural components to achieve the purpose of saving design costs and shortening the product launch cycle. . A three-dimensional model of the product is usually established in a computer as the basis for analysis. The current Pro-Engineer, CATIA, and Patran can be used as 3D modeling tools, and CAD (Computer Aided Drafting) is usually used as a basic finite element analysis tool.

[0003] As the initial process of the 3D finite element method, a structure or mechanical part to be analyzed is first divided into small units of a ce...

Claims

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