Research on Product Design Method based on Design Tree Model and Knowledge Base

Abstract:

In view of the limitations in the process of assembling the conceptual model according to the the designer’s experience in the current product design system, a product design method based on design scheme tree and knowledge base is proposed. The formulae, experience, optimization principles and other information in the design process are stored in the knowledge base in which the structure is the tree with the product attributes as its nodes. The product conceptual design and parts’ detailed design are combined, and the product components are screened and designed while the principles are arranged. The tree structure is adopted and the product attribute is taken as the node to generate the design tree. Then the ideal solution method based on analytic hierarchy process is used to rank the alternatives, which increases the diversity of alternative schemes and reduces the cost of the product while obtaining the optimal solution. Taking the design of the hoist as an example, the reliability and practicability of the algorithm are verified