Prediction of Tool Remaining Useful Life Based on NHPP-WPHM

Yingzhi Zhang, Guiming Guo, Fang Yang, Yubin Zheng () and Fenli Zhai
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Yingzhi Zhang: Key Laboratory of Reliability of CNC Equipment, Ministry of Education, No. 5988 Renmin Street, Nanguan, Changchun 130022, China
Guiming Guo: Key Laboratory of Reliability of CNC Equipment, Ministry of Education, No. 5988 Renmin Street, Nanguan, Changchun 130022, China
Fang Yang: China FAW Group Co., Ltd., Changchun 130011, China
Yubin Zheng: Key Laboratory of Reliability of CNC Equipment, Ministry of Education, No. 5988 Renmin Street, Nanguan, Changchun 130022, China
Fenli Zhai: Huawei Technologies Co., Ltd., Changchun 130012, China

Mathematics, 2023, vol. 11, issue 8, 1-17

Abstract: A tool remaining useful life prediction method based on a non-homogeneous Poisson process and Weibull proportional hazard model (WPHM) is proposed, taking into account the grinding repair of machine tools during operation. The intrinsic failure rate model is built according to the tool failure data. The WPHM is established by collecting vibration information during operation and introducing covariates to describe the failure rate of the tool operation. In combination with the tool grinding repair, the NHPP-WPHM under different repair times is established to describe the tool comprehensive failure rate. The failure threshold of the tool life is determined by the maximum availability, and the remaining tool life is predicted. Take the cylindrical turning tool of the CNC lathe as an example, the root mean square error, mean absolute error, mean absolute percentage error, and determination coefficient (R 2 ) are used as indicators. The proposed method is compared with the actual remaining useful life and the remaining useful life prediction model based on the WPHM to verify the effectiveness of the model.

Keywords: tool; remaining useful life; vibration information; NHPP-WPHM (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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