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A Comprehensive Evaluation Method of Machining Center Components’ Importance Based on Combined Variable Weight

Author

Listed:
  • Lan Luan

    (Key Laboratory of Reliability of CNC Equipment, Ministry of Education, Changchun 130022, China
    School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China)

  • Guixiang Shen

    (Key Laboratory of Reliability of CNC Equipment, Ministry of Education, Changchun 130022, China
    School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China)

  • Yingzhi Zhang

    (Key Laboratory of Reliability of CNC Equipment, Ministry of Education, Changchun 130022, China
    School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China)

Abstract

The fault transitivity of machining center components causes their fault propagation indexes to demonstrate dynamic time variability, which affects their importance. The method proposed in this study overcomes the biases of existing methods of evaluating the importance of system components, as they are mostly based on single indexes; the fault propagation probability and fault propagation risk are selected to perform a comprehensive evaluation. This study first establishes a network hierarchical structure model for machining center components, and the degree of influence of fault propagation among the components is calculated. On this basis, the improved adjacent spreading paths (ASP) algorithm is used to calculate the fault propagation index of each component; from the two perspectives of fault propagation probability and fault propagation risk, an evaluation mechanism involving the combined variable weight is used to comprehensively evaluate components’ importance. Taking a certain type of machining center as an example, through a comparison with ranking results from other node importance methods, it is verified that the proposed method can more effectively distinguish the differences in the importance of each component, thus illustrating the effectiveness and practical value of this method.

Suggested Citation

  • Lan Luan & Guixiang Shen & Yingzhi Zhang, 2024. "A Comprehensive Evaluation Method of Machining Center Components’ Importance Based on Combined Variable Weight," Mathematics, MDPI, vol. 12(2), pages 1-19, January.
    • Handle: RePEc:gam:jmathe:v:12:y:2024:i:2:p:330-:d:1322474
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    References listed on IDEAS

    as
    1. Ting Chen & Jianxiao Ma & Zhenjun Zhu & Xiucheng Guo, 2023. "Evaluation Method for Node Importance of Urban Rail Network Considering Traffic Characteristics," Sustainability, MDPI, vol. 15(4), pages 1-20, February.
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