An approach to the selection of design parameters based on conflict with constraints

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Abstract

The Axiomatic Design (AD) supports decision-making based on the axioms of independence and information. In the engineering design activity, the designer must make early decisions that impact the success of the project. These decisions are of paramount importance in the design of one-off products. In these products, one must make decisions in the early design phases, with scarce data about the product that will undeniably affect the solution. Applying the information axiom requires data from the alternative solutions under consideration that for one-off products are most often non-existent in the conceptual phase of the design. Additionally, the design process is highly conditioned by existing constraints, which significantly influence the outcome. This work suggests selecting design parameters (DP) for one-off products from different sets of proposals that comply with the independence of functional requirements (FR). AD design follows a hierarchical decomposition process from a conceptual to a detailed design. The proposed method allows selecting the DPs among the set of alternatives by quantifying the degree of conflict each solution presents to the constraints. It shows the first step to define the DPs, at each level of decomposition of the AD process. It is the first step to establish a zig in AD or, otherwise, a way to find a solution in the conceptual phase. It applies to one-off products - any product with one chance to be right. The paper applies this method to the DP selection of a manipulation device.

Original languageEnglish
Pages (from-to)357-362
Number of pages6
JournalProcedia CIRP
Volume119
DOIs
Publication statusPublished - 2023
Event33rd CIRP Design Conference - Sydney, Australia
Duration: 17 May 202319 May 2023

Keywords

  • Axiomatic Design
  • Constraints
  • Design Parameters
  • one-off products

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