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在创新设计过程中,随着对初始问题分析过程的深入,会逐渐展开多个彼此关联、相互影响的矛盾,这些矛盾构成矛盾网络。正确地从矛盾网络中选择重要矛盾、根源矛盾以及核心矛盾,是解决设计问题的关键。在研究矛盾关系模式和矛盾网络求解策略的基础上,采用有向图来表达矛盾网络中矛盾之间的影响关系,提出矛盾影响度的计算方法,建立了以DEMATEL方法支持的根源矛盾和核心矛盾的选择流程,阐述了综合考虑矛盾重要度、原因度和中心度的矛盾选择的方法。以卷扬机初始问题展开的矛盾网络为例,验证了所提方法的正确性。
In the course of innovative design, with the deepening of the process of analyzing the initial problems, a number of contradictions that affect and interact with each other will gradually unfold. These contradictions constitute a network of contradictions. It is the key to solve the design problem to correctly choose the important contradiction, the contradiction between the root and the core contradiction from the contradictory network. On the basis of studying the contradiction relation model and contradiction network solution strategy, this paper uses the directed graph to express the relationship between the contradictions in the contradictory networks and puts forward the calculation method of the contradiction influence degree. It establishes the fundamental contradiction and the core contradiction supported by the DEMATEL method The selection process, elaborated the method of considering the contradictory importance, the reason degree and the center of the contradictory choice. Take the contradictory network of hoist initial problem as an example, the correctness of the proposed method is verified.