The acceleration of the product development cycle continues to be a significant challenge for manufacturing firms around the world. The misunderstanding of important relationships between product functions and components leads the delay of product development. The present paper describes an identification method of the relationships between product functions and components at the early stage of product development. The proposed product function-component modeling method using rough sets theory extracts the characteristic relationships between product functions and components from a small amount of the qualitative and linguistically-expressed knowledge data. The advantage of using the rough sets is that the combination of necessary and possible sets (lower and upper approximations) represents the vague knowledge. The present paper describes an example of a conventional cutting process with 6 manufacturing parameters that this method contributes to the identification of cutting mechanism from a small amount of sampling data (7% of whole event) compared to the conventional statistical modeling method.
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ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
August 30–September 2, 2009
San Diego, California, USA
Conference Sponsors:
- Design Engineering Division and Computers in Engineering Division
ISBN:
978-0-7918-4905-7
PROCEEDINGS PAPER
Product Function: Component Modeling Using Rough Sets
Toshiharu Miwa,
Toshiharu Miwa
Hitachi, Ltd., Yokohama, Japan
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Hideki Aoyama
Hideki Aoyama
Keio University, Yokohama, Japan
Search for other works by this author on:
Toshiharu Miwa
Hitachi, Ltd., Yokohama, Japan
Hideki Aoyama
Keio University, Yokohama, Japan
Paper No:
DETC2009-87005, pp. 167-175; 9 pages
Published Online:
July 29, 2010
Citation
Miwa, T, & Aoyama, H. "Product Function: Component Modeling Using Rough Sets." Proceedings of the ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 8: 14th Design for Manufacturing and the Life Cycle Conference; 6th Symposium on International Design and Design Education; 21st International Conference on Design Theory and Methodology, Parts A and B. San Diego, California, USA. August 30–September 2, 2009. pp. 167-175. ASME. https://doi.org/10.1115/DETC2009-87005
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