Boots – shoes – and leggings
Patent
1991-04-08
1994-05-24
Cosimano, Edward R.
Boots, shoes, and leggings
364578, 395123, G06F 1520
Patent
active
053155378
ABSTRACT:
An automatic quadrilateral surface discretization method and apparatus is provided for automatically discretizing a geometric region without decomposing the region. The automated quadrilateral surface discretization method and apparatus automatically generates a mesh of all quadrilateral elements which is particularly useful in finite element analysis. The generated mesh of all quadrilateral elements is boundary sensitive, orientation insensitive and has few irregular nodes on the boundary. A permanent boundary of the geometric region is input and rows are iteratively layered toward the interior of the geometric region. Also, an exterior permanent boundary and an interior permanent boundary for a geometric region may be input and the rows are iteratively layered inward from the exterior boundary in a first counter clockwise direction while the rows are iteratively layered from the interior permanent boundary toward the exterior of the region in a second clockwise direction. As a result, a high quality mesh for an arbitrary geometry may be generated with a technique that is robust and fast for complex geometric regions and extreme mesh gradations.
REFERENCES:
patent: 4072282 (1978-02-01), Fulker et al.
patent: 4257690 (1981-03-01), Howland
patent: 4268861 (1981-05-01), Schreiber et al.
patent: 4384768 (1983-05-01), Guzman
patent: 4771192 (1988-09-01), Jackson
patent: 4875097 (1989-10-01), Jackson
patent: 4912664 (1990-03-01), Weiss et al.
patent: 4930010 (1990-05-01), MacDonald
patent: 4933889 (1990-06-01), Meshkat et al.
patent: 4941114 (1990-07-01), Shigyo et al.
patent: 4958272 (1990-09-01), Wake
patent: 4969116 (1990-11-01), Wada et al.
patent: 5125038 (1992-06-01), Meshkat et al.
patent: 5214752 (1993-05-01), Meshkat et al.
Herrmann: "Laplacian-Isoparametric Grid Generation Scheme"; Journal of Engineering Mechanics, Oct. 1979 pp. 749-756.
A. J. G. Schoofs et al.; A General Purpose Two-Dimensional Mesh Generator; 1979; pp. 131-136.
Kellyn Betts; (CIME) Adaptivity Reshapes Fe Analysis; Oct. '90, pp. 59-64.
M. B. Stephenson et al.; Using Conjoint Meshing Primitives to Generate Quadrilateral and Hexahedral Elements in Irregular Regions; 1989; pp. 163-172.
T. D. Blacker et al.; Automated Quadrilateral Mesh Generation: A Knowledge System Approach; Nov. 27-Dec. 2, 1988; pp. 1-9.
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