The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 02, 1998

Filed:

Jun. 29, 1995
Applicant:
Inventors:

Yoshifumi Yamashita, Yokohama, JP;

Hiromitsu Moriyama, Yokohama, JP;

Masao Kawai, Kawasaki, JP;

Kimitaka Tamura, Yokohama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
345421 ;
Abstract

Sub-areas divided from a three-dimensional areas to be analyzed are generated by hexahedron meshes as much as possible, and for the sub-areas not formed by the hexahedron elements, tetrahedron meshes are generated by a tetrahedron mesh generation unit. For the mesh generation of the sub-area adjacent to the hexahedron mesh area and the tetrahedron mesh area, the data of other sub-area for which the mesh has been generated which is adjacent to the sub-area for which the mesh is to be generated is searched from a sub-area data area and a mesh shape formed by a plurality of triangles on the surface of the area for which the mesh is to be generated from the mesh shape on the joining plane to the adjacent sub-area to generate a quadrilateral mesh in the area for which the mesh is to be generated.


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