Prediction Model of Machining Failure Trend Based on Large Data Analysis

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Li, Jirong^1

Wuyi University, Guangdong

529020, China^1

关键词: Correlation dimensions;    Empirical Mode Decomposition;    Fault trend predictions;    Intelligent expert systems;    Mechanical machining;    Mechanical processing;    Spectral decomposition;    Spectrum characteristic;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012065/pdf
DOI  :  10.1088/1757-899X/274/1/012065

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The mechanical processing has high complexity, strong coupling, a lot of control factors in the machining process, it is prone to failure, in order to improve the accuracy of fault detection of large mechanical equipment, research on fault trend prediction requires machining, machining fault trend prediction model based on fault data. The characteristics of data processing using genetic algorithm K mean clustering for machining, machining feature extraction which reflects the correlation dimension of fault, spectrum characteristics analysis of abnormal vibration of complex mechanical parts processing process, the extraction method of the abnormal vibration of complex mechanical parts processing process of multi-component spectral decomposition and empirical mode decomposition Hilbert based on feature extraction and the decomposition results, in order to establish the intelligent expert system for the data base, combined with large data analysis method to realize the machining of the Fault trend prediction. The simulation results show that this method of fault trend prediction of mechanical machining accuracy is better, the fault in the mechanical process accurate judgment ability, it has good application value analysis and fault diagnosis in the machining process.