Application of TRIZ in Creative Design Based on Knowledge Granularity

doi:10.3901/JME.2016.05.022

Abstract

Abstract: To realize the transformation from general solution to special solution in TRIZ, the problem resolution mechanism in creative design is analyzed from the perspective of cognitive psychology, and then a multi-granularity and multi-level knowledge organization model is put forward. Design knowledge is labeled with five attributes which are TRIZ principle, function, behavior-flow, scientific effect and domain, each attribute consists of three levels that are concept, semantics and fact resource, thus a multi-attribute and multi-level local knowledge base is constructed to offer designers knowledge in some specific domain. Furthermore, through semantic ontology reasoning and semantic extension, inter-domain and far domain knowledge is obtained from patent base and network resources and pushed for designers in the problem-solving process in creative design. It is conducive to inspire designer associate analogy and support them, analyze and solve the problems from different knowledge granularities. Finally a problem-solving model and system framework for creative design based on multi-granularity knowledge organization are established, and then a conceptual design case of III type rail fastener is used to show the practicability of the model.

Key words: cognitive, creative design, knowledge granularity, TRIZ theory

CLC Number:

TH122

LIU Longfan, LI Yan, MA Jinlong, DU Xiaojiao, LIU Hongwei. Application of TRIZ in Creative Design Based on Knowledge Granularity[J]. Journal of Mechanical Engineering, 2016, 52(5): 22-32.

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