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Research on Critical Quality Feature Recognition and Quality Prediction Method of Machining Based on Information Entropy and XGBoost Hyperparameter Optimization

Authors :
Dongyue Qu
Chaoyun Gu
Hao Zhang
Wenchao Liang
Yuting Zhang
Yong Zhan
Source :
Applied Sciences, Vol 14, Iss 18, p 8317 (2024)
Publication Year :
2024
Publisher :
MDPI AG, 2024.

Abstract

To address the problem of predicting machining quality for critical features in the manufacturing process of mechanical products, a method that combines information entropy and XGBoost (version 2.1.1) hyperparameter optimization is proposed. Initially, machining data of mechanical products are analyzed based on information entropy theory to identify critical quality characteristics. Subsequently, a quality prediction model for these critical features is established using the XGBoost machine learning framework. The model’s hyperparameters are then optimized through Bayesian optimization. This method is applied as a case study to a medium-speed marine diesel engine piston. After the critical quality characteristics in the machining process are identified, the machining quality of these vital characteristics is predicted, and the results are compared with those obtained from a machine learning model without hyperparameter optimization. The findings demonstrate that the proposed method effectively predicts the machining quality of mechanical products.

Details

Language :
English
ISSN :
14188317 and 20763417
Volume :
14
Issue :
18
Database :
Directory of Open Access Journals
Journal :
Applied Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.b6a2424cb28c45a2a7d3ad8ca2fcf5e0
Document Type :
article
Full Text :
https://doi.org/10.3390/app14188317