关键词: 航空产品, 多余物, 本体, 知识图谱

Abstract: Effective management of foreign object debris at the headquarters assembly site of aviation products is crucial to ensure the safety and reliability of aviation products. Aiming at the problem that the management of existing foreign object debris relies on the experience of experts and is highly subjective, a method of managing foreign object debris based on ontology modeling to construct a knowledge graph is proposed. The ontology model is used to describe and organize the knowledge related to foreign object debris, including the attributes of the foreign object, the associated relationships, the causes of the foreign object debris, and so on, to construct a knowledge graph to demonstrate the concepts related to foreign object debris clearly and to provide intuitive decision-making support for foreign object debris managers. Based on the existing relationships in the knowledge graph, the relationship between the causes of the foreign object problem and the management measures is constructed. The causes of the foreign object problem are categorized by using the binary tree support vector machine, which can assist the foreign object managers finding out the root causes of the foreign object problem more quickly and taking relevant management measures. The effectiveness of the proposed method is verified through case studies, and the results show that the knowledge graph of foreign object debris based on the ontology model can provide managers with structured information on foreign object debris and provide new retrieval ideas in the process of applying the knowledge graph.

Key words: aviation products, foreign object debris, ontology, knowledge graph