Open Access

ARTICLE

Milling Fault Detection Method Based on Fault Tree Analysis and Hierarchical Belief Rule Base

by Xiaoyu Cheng¹, Mingxian Long¹, Wei He^1,2,*, Hailong Zhu¹

1 School of Computer Science and Information Engineering, Harbin Normal University, Harbin 150025, China
2 High-Tech Institute of Xi’an, Xi’an, Shanxi, 710025, China

* Corresponding Author: Wei He. Email:

Computer Systems Science and Engineering 2023, 46(3), 2821-2844. https://doi.org/10.32604/csse.2023.037330

Received 30 October 2022; Accepted 17 February 2023; Issue published 03 April 2023

Abstract

Expert knowledge is the key to modeling milling fault detection systems based on the belief rule base. The construction of an initial expert knowledge base seriously affects the accuracy and interpretability of the milling fault detection model. However, due to the complexity of the milling system structure and the uncertainty of the milling failure index, it is often impossible to construct model expert knowledge effectively. Therefore, a milling system fault detection method based on fault tree analysis and hierarchical BRB (FTBRB) is proposed. Firstly, the proposed method uses a fault tree and hierarchical BRB modeling. Through fault tree analysis (FTA), the logical correspondence between FTA and BRB is sorted out. This can effectively embed the FTA mechanism into the BRB expert knowledge base. The hierarchical BRB model is used to solve the problem of excessive indexes and avoid combinatorial explosion. Secondly, evidence reasoning (ER) is used to ensure the transparency of the model reasoning process. Thirdly, the projection covariance matrix adaptation evolutionary strategies (P-CMA-ES) is used to optimize the model. Finally, this paper verifies the validity model and the method's feasibility techniques for milling data sets.

---

Keywords

---