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그래프 이론 기반 적층제조 온톨로지 데이터베이스 개발과 활용
정동호(Dongho Jung),안재승(Jaeseung Ahn),유현재(Hyunjae Yoo),박여춘(Yeochoon Park),박상인(Sang-in Park) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
The ontology is a knowledge representation method by defining a set of concepts in a certain domain and abstracting relationship among concepts. In recent research, the ontology scheme has been applied to establish knowledgebase of additive manufacturing (AM) systems because AM processes utilize various physical phenomena resulting complex relationships among diverse parameters across modeling, material, and process domains. The goal of this research is to construct an additive manufacturing knowledgebase using the ontology scheme with graph representation. To do this, we firstly developed the class structure and defined relationships among the classes based on a structure of working principles structure for given additive manufacturing device. Next, we employ concept of a weight factor, which is a measure for a level of importance or impact of relationships. Finally, we convert the developed ontology representation to graph representation with proposed weight factors. The developed knowledge presentation approach is applied to construct knowledge-base for a material extrusion additive manufacturing system and verified using examples.
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