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Point placement method for use in a three-dimensional automatic mesh generation system

  • US 5,214,752 A
  • Filed: 01/22/1991
  • Issued: 05/25/1993
  • Est. Priority Date: 01/22/1991
  • Status: Expired due to Term
First Claim
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1. A method for producing a set of points for a mesh of finite elements for a body to be analyzed, said body exhibiting boundaries and faces, said method comprising the steps of:

  • a. producing an initial mesh of elements for said body, each said element having a plurality of vertices and edges;

    b. for each vertex in a first subset of said vertices, finding points of intersection (POI'"'"'s) between a sphere of radius R, centered at said vertex, and said boundaries and edges;

    c. determining if a found POI is either on or within boundaries of said body and if so, exhibits more than a minimum clearance distance from said boundaries and vertices, if both conditions are met, said POI is classified as a selected POI;

    d. inserting a selected POI in said initial mesh; and

    e. repeating steps b-d for all POI in said first subset, and then proceeding to succeeding subsets of said vertices, until all subsets have been considered.

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