Reverse engineering system for functional parts with complex shape

Megumi Sato, Hideki Aoyama

Research output: Contribution to conferencePaper

Abstract

This paper deals with four processes for constructing mathematical models based on measurement data. The first process is smoothing measurement data based on the hypothesis that a small area of a curved surface can be approximated to an ellipsoid. The second process is fitting the measurement data into the cross points between 3D lattice and fill points by approximating ellipse surface. The third process is recognizing surfaces and boundary lines composing a physical model by curvature on points located on the 3D lattice and variance of coordinate values of points. The last process is approximately defining NURBS surfaces by the minimum square method to average positional errors. In addition, complex shapes are used as evaluation models. The results of constructing surfaces show usefulness of the system based on the proposed methods.

Original languageEnglish
Publication statusPublished - 2009 Dec 1
Event5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009 - Osaka, Japan
Duration: 2009 Dec 22009 Dec 4

Other

Other5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009
CountryJapan
CityOsaka
Period09/12/209/12/4

Keywords

  • Curvature
  • Machined product
  • Numerical formula model
  • NURBS
  • Reverse engineering

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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    Sato, M., & Aoyama, H. (2009). Reverse engineering system for functional parts with complex shape. Paper presented at 5th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2009, Osaka, Japan.