关键词: 灰关联分析, 概念设计, 相似性, 需求/结构映射, 规则, 产品设计

Abstract: To accurately obtain the structure schemes, a method of similarity matching and reasoning for requirements/structure mapping based on grey relational theory was put forward.In automatic two-stage case-based reasoning model of grey relational similarity matching and solving, a hierarchical grey relational solving mapping strategy was designed to complete requirement conversion and function solving. Normative requirement/function code form was used and the rules of preliminary information retrieval were set to narrow the scope of case retrieval. The comparative rules of differences information were set up, and requirements and functions index weights were introduced to the grey relational grade formula by matching case with grey relational analysis. Thus product conceptual design structure schemes could be automatically obtained to make the reasoning solution fit for practical application of conceptual design. The effectiveness and feasibility of the model were verified through applications of clam harvest machine and packaging crusher.

Key words: grey relation analysis, conceptual design, similarity, requirements/structure mapping, rules, product design