On the computation of the information content of a coupled design with two functional requirements

António Gonçalves-Coelho, Joao Fradinho, Antonio Gabriel-Santos, Miguel Cavique, Antonio Mourao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Computing the information content of coupled designs is seldom discussed in the literature, probably because the Axiomatic Design (AD) practitioners know that coupled design solutions should be avoided. On the other hand, Suh's theorem 7 states, "the information contents of coupled and decoupled designs depend on the sequence by which the DPs are changed to satisfy the given set of FRs". From this theorem, one could be tempted to conclude that the information contents of coupled designs cannot be computed, because they have not a "right" sequence for changing the values of the DPs in order to satisfy the given FRs. This misunderstanding could then be used to stress that AD is not useful as a decision-making approach for coupled designs. Yet, coupled designs do exist, they are many times unavoidable and their information contents can be computed, although this is often hard to perform. This paper presents the computation of the information content for the simple case of a 2-FR, 2-DP coupled design and illustrates how this topic is related to Suh's theorem 8 on independence and tolerance. (C) 2015 The Authors. Published by Elsevier B.V.

Original languageEnglish
Title of host publication9TH INTERNATIONAL CONFERENCE ON AXIOMATIC DESIGN (ICAD 2015)
EditorsMK Thompson, A Giorgetti, P Citti, D Matt, NP Suh
PublisherElsevier Science B.V., Inc
Pages7-12
Number of pages6
DOIs
Publication statusPublished - 2015
Event9th International Conference on Axiomatic Design (ICAD) - Florence, Italy
Duration: 16 Sep 201518 Sep 2015

Publication series

NameProcedia CIRP
PublisherELSEVIER SCIENCE BV
Volume34
ISSN (Print)2212-8271

Conference

Conference9th International Conference on Axiomatic Design (ICAD)
CountryItaly
CityFlorence
Period16/09/1518/09/15

Keywords

  • AXIOMATIC DESIGN

Cite this

Gonçalves-Coelho, A., Fradinho, J., Gabriel-Santos, A., Cavique, M., & Mourao, A. (2015). On the computation of the information content of a coupled design with two functional requirements. In MK. Thompson, A. Giorgetti, P. Citti, D. Matt, & NP. Suh (Eds.), 9TH INTERNATIONAL CONFERENCE ON AXIOMATIC DESIGN (ICAD 2015) (pp. 7-12). (Procedia CIRP; Vol. 34). Elsevier Science B.V., Inc. https://doi.org/10.1016/j.procir.2015.07.007