Product Form Evolutionary Design Integrated with TRIZ Contradiction Matrix

This paper aims to construct a product form evolution design method integrating the TRIZ contradiction matrix, which is used to eliminate the contradiction between users’ psychological expectations and product engineering requirements, thus simplifying the product form evolution process. We first obtain the psychological needs of users during the whole process of using the product through behavior analysis and then perform an ergonomic simulation of the product to obtain the engineering properties of the product. On this basis, we construct the TRIZ contradiction matrix and solve the contradiction matrix according to the TRIZ theory method. In this way, the ergonomic engineering design attributes of products and the psychological needs of users can be relatively independent, so that the conflict between the ergonomic functional attributes and the psychological needs of users in the design matrix can be effectively transformed into a general TRIZ problem to provide intuitive guidance for product form design. In addition, a detailed design case is provided, which shows that this method can simplify the difficulty and complexity of product form design, and users are more inclined to use the optimized product.