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2001•Sekkei Kougaku, Shisutemu Bumon Kouenkai kouen rombunshuu/Sekkei Kogaku, Shisutemu Bumon Koenkai koen ronbunshuOpen access

A Remark on Geometry Recognition for a Reverse Engineering by Using FOA

Minako SEKIGUCHI, Masayuki Kusakabe, Satoshi Yamaguchi, Noboru Kikuchi

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Abstract

We shall reconstruct two or/and three dimensional geometry from the image data obtained by X-ray CT scanning equipment for reverse engineering. To this end, instead of using Bezier and B-splines, as well as NURBS, we shall introduce a new method to approximate geometry by using the finite element approximation applied in FOA (First Order Analysis) that has been developed in design of, for example, automotive body structures. Furthermore, FOA approach is applied not only to approximate a given geometry but also to generate a finite element mesh of a curved shell.

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What this paper is about

We shall reconstruct two or/and three dimensional geometry from the image data obtained by X-ray CT scanning equipment for reverse engineering. To this end, instead of using Bezier and B-splines, as well as NURBS, we shall introduce a new method to approximate geometry by using the finite element approximation applied in FOA (First Order Analysis) that has been developed in design of, for example, automotive body structures. Furthermore, FOA approach is applied not only to approximate a given geometry but also to generate a finite element mesh of a curved shell.

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Available abstract

We shall reconstruct two or/and three dimensional geometry from the image data obtained by X-ray CT scanning equipment for reverse engineering. To this end, instead of using Bezier and B-splines, as well as NURBS, we shall introduce a new method to approximate geometry by using the finite element approximation applied in FOA (First Order Analysis) that has been developed in design of, for example, automotive body structures. Furthermore, FOA approach is applied not only to approximate a given geometry but also to generate a finite element mesh of a curved shell.

Key concepts: Reverse engineering, Bézier curve, Geometry, Finite element method, Shell (structure), Mathematics, Computer science, Engineering

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