• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2026, Vol. 62 ›› Issue (5): 88-99.doi: 10.3901/JME.260230

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Research on Traceability Method of Aerospace Product Assembly Quality Based on Knowledge Graph

ZHENG Xiaohu1,2, CAO Lijun3, LIU Xiaojia3, DU Siqi4, WU Wenqiang1, ZHANG Jie1,2, DING Siyi1,2   

  1. 1. School of Information and Intelligent Science, Donghua University, Shanghai 201620;
    2. Shanghai Engineering Center of Industrial Big Data and Intelligent System, Shanghai 201620;
    3. Shanghai Spaceflight Precision Machinery Institute, Shanghai 201600;
    4. College of Mechanical Engineering, Donghua University, Shanghai 201620
  • Received:2025-02-25 Revised:2025-12-02 Published:2026-04-23

Abstract: To address the challenges of integrating multi-source heterogeneous data and inefficient association and tracing of quality issues in the assembly process of aerospace products, this study proposes a knowledge graph-based quality tracing method. By constructing a knowledge graph encompassing critical scenarios including logistics and hoisting, cable network conductivity, and comprehensive testing, we integrate structured and unstructured data to achieve cross-process semantic association and deep reasoning of data. The approach combines YOLOv8 and DeepSORT algorithms for real-time object detection and behavior analysis in logistics/hoisting scenarios, while employing the K-nearest neighbors (KNN) algorithm for anomaly detection in cable network conductivity and comprehensive testing scenarios. A collaborative reasoning mechanism of "anomaly-cause-solution" is established through the knowledge graph, breaking through the data silo limitations of traditional quality tracing methods and providing interpretable support for quality issue localization and root cause analysis in product assembly. Case validation demonstrates that this method effectively resolves data silo issues in aerospace product assembly, enhances the accuracy and efficiency of anomaly localization and quality tracing, and offers technical support for intelligent quality management in complex assembly scenarios.

Key words: knowledge graph, quality traceability, aerospace product final assembly, multi-source data fusion

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