Fuzzy Relationship between Kansei Images: A Grey Decision-Making Method for Product Form

Author:

Wang Shijie1ORCID,Zhang Shutao2ORCID,Su Jianning2ORCID,Yang Zhiqiang1ORCID,Liu Shifeng1,Zhou Aimin2,Yang Wenjin2ORCID,Qiu Kai2ORCID

Affiliation:

1. School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou 730050, China

2. School of Design Art, Lanzhou University of Technology, Lanzhou 730050, China

Abstract

Current design decision-making methods ignore the fuzzy relationship between Kansei images, and the use of constant weights reduces the accuracy of cognitive evaluation results. To solve these problems, this paper proposes a grey decision-making method for product form driven by the fuzzy relationship between Kansei images. First, according to the initial weight of the Kansei images, variable weight theory is used to determine the Kansei image variable weights of the samples, and the variable weight comprehensive evaluation results for each sample are obtained. Then, based on the correlation and angle of the Kansei images, a cobweb diagram is drawn to represent the fuzzy relationship between the Kansei images of each sample. Combined with the cobweb grey target decision-making model (CGTDM) for multiple Kansei images, decision coefficients are calculated. The decision coefficients are compared and ranked to determine the relatively optimal design reference sample. Finally, the constructed model is compared with the CGTDM for multiple Kansei images and TOPSIS. The results show that the difference coefficient of the proposed method is the largest, and it can reflect the decision-making thinking of the designers and improve the discrimination among the decision-making results to a certain extent.

Funder

National Natural Science Foundation of China

Gansu Provincial Department of Education: Innovation Fund Project for College Teachers

Publisher

MDPI AG

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