Hybridized fuzzy analytic hierarchy process and fuzzy weighted average for identifying optimal design concept.
Olabanji, Olayinka Mohammed Mpofu, Khumbulani
Olabanji, Olayinka Mohammed
Mpofu, Khumbulani
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Abstract
In this article, a novel hybridized Multi-Attribute Decision Model (MADM) is developed to identify an optimal design of a Reconfigurable Assembly Fixture (RAF) from a set of alternative design concepts. The model combines the comparative advantage of Fuzzy Analytic Hierarchy Process (FAHP) and the computational strength of the Fuzzy Weighted Average (FWA) based on left and right scores in order to obtain aggregates for the design alternatives considering the relative importance of the design criteria as needed in the optimal design. The model was applied to evaluate four design concepts of a RAF with six design features having numerous sub-features. Results obtained from the evaluation process shows that there are differences in final values of the design alternatives. However, a close variation exists between these values. These differences can be accrued to the interrelationships between the design features and sub-features obtained from the Fuzzy Synthetic Extent (FSE) ofthe FAHP and an unambiguity judgment of the FWA when aggregating availability of the design features and sub-features in the design alternatives.
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Date
2020-01-06
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Elsevier
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Keywords
Computational mathematics, Industrial engineering, Fuzzy AHP, Fuzzy weighted average, Design concept selection, Reconfigurable assembly fixture, Multidisciplinary design optimization, Computer-aided design, Manufacturing engineering, Machine design, Mechanical systems, Decision analysis, Decision support tools