A Fuzzy Product Analysis in Design for Robotic Assembly

Design for Assembly (DFA) are structured analysis procedures which give to design teams the information to making the product easier to automate its assembly , obtaining so reduction of the product development cost and time.In this paper, utilising the so-called “House of DFA” method, the robotic assemblability is evaluated by means of a fuzzy set approach. It is shown that fuzzy set hold a better representation, manipulation and measure of subjective information and designer's experience and, in particular, it is one of the most way to represents the product properties defined by linguistic variable. On the base of scores, weights and tables present in the DFA House the B-spline membership functions construction is illustrated. Moreover, an aggregation functions for the fuzzy overall evaluation of product assemblability is proposed. The result of this fuzzy analysis and evaluation could lead to a better selection and redesigning of a candidate product for robotic assembly and a better integration