The Evaluation and Application of Part Search System

• Main Authors: Tsung-Po Chen, 陳宗伯
• Other Authors: Chun-Fong You
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/61889735485159683510

碩士 === 國立臺灣大學 === 機械工程學研究所 === 92 === Using the contents that CAD file provides, this research presents a method of searching parts with similar shape and manufacturing feature, identifying parts with similar shape and feature, in order to share their design and manufacturing data in PDM systems. Polar Fourier Transform (PFT) analysis is applied to shadings image of a part to get its Generic Fourier Descriptor (GFD) indexes; feature recognition is applied for a part to get its manufacturing features. Using GFD index and feature information, it is possible to define the similarity of two parts. This approach can be applied to PDM systems for searching parts with certain shape and feature, and processed the automatic version control by analysis the shape and feature difference of different version parts.