Using a Fuzzy Pairwise Comparison Technique to Deal with Coupled Design Tasks in Engineering Design

By K. P. Anagnostopoulos, O. Demesouka and G. Koulinas.

Published by The Design Collection

Format Price
Article: Print $US10.00
Article: Electronic $US5.00

Axiomatic design (AD) is a well known design methodology in which the design activity consists of mapping between four domains, i.e. customer, functional, physical and process. According to AD theory only designs that satisfy the so called independence axiom are accepted, as they lead to uncoupled or decoupled designs. However, many engineering designs do include coupling terms of various degrees of strength. We propose an effective method of measuring the functional couplings’ effect on the product, so as to improve the whole design process. The method is based on fuzzy set theory -a valuable tool for dealing with imprecision and uncertainty of engineer judgement- in particular the Fuzzy Analytic Hierarchy Process in order to estimate the coupling terms’ weights. The effectiveness of the proposed method is demonstrated by an illustrative example. The required calculations are carried out by SoftFAHP, a software package developed by our laboratory for supporting both the typical and fuzzy AHP.

Keywords: Axiomatic Design, Coupled Design, Fuzzy Analytic Hierarchy Process, Independence Axiom, Product Design

Design Principles and Practices: An International Journal, Volume 2, Issue 1, pp.139-148. Article: Print (Spiral Bound). Article: Electronic (PDF File; 998.929KB).

Dr. K. P. Anagnostopoulos

Associate Professor, Department of Production and Management Engineering, Democritus University of Thrace, Xanthi, Greece

O. Demesouka

PhD Candidate, Department of Production and Management Engineering, Democritus University of Thrace, Xanthi, Greece

G. Koulinas

PhD Candidate, Department of Production and Management Engineering, Democritus University of Thrace, Xanthi, Greece


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