A Conceptual Design Method for Resilient Products Based on Mapping and Solving Requirements to Structural Layout
摘要
With the development of intelligent products, the working environment of the products will be complex and changeable, so resilience is introduced into product conceptual design to enhance the ability of products to quickly recover from adverse events. However, in the conceptual design stage, considering the spatial relationship between resilient function and structure from an overall perspective is still relatively rare, resulting in bloat and low flexibility of products. To solve this problem, a conceptual design method for resilient products based on structural layout requirements mapping and solving is proposed. Firstly, the functional requirements and technical characteristics of products were defined based on fuzzy Quality Function Deployment (FQFD) and five principles of resilient design. Secondly, a Technical Feature-Function Layout-Structure Layout (TFFLSL) model was established, and functional layout and structural layout were added to the functional structure mapping process to reduce the overlap of various functional workspace and the physical conflict between structures, and then the basic structural space layout was obtained. Finally, the Theory of Invention Problem Solving (TRIZ) is used to solve the conflict of structure space, generate a reasonable design structure layout, and give a resilient conceptual design scheme that meets the spatial constraints. The scheme is verified by a case of conceptual design of resilient grab pore-forming structure. The results show that the proposed method can effectively solve the conflict between resilient structure and space.