Early Fault Detection of Planetary Gearbox Based on Acoustic Emission and Improved Variational Mode Decomposition

被引：51

作者：

Liu, Liansheng ^{[1
]}

Chen, Liquan ^{[2
]}

Wang, Zhiliang ^{[3
]}

Liu, Datong ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Elect & Informat Engn, Harbin 150080, Peoples R China

[2] Harbin Inst Technol, Automat Test & Control Inst, Harbin 150080, Peoples R China

[3] AECC Harbin Dongan Engine Co Ltd, Test Ctr, Harbin 150066, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2021年 / 21卷 / 02期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Sensors; Fault detection; Entropy; Vibrations; Mutual information; Acoustic emission; Machinery; feature extraction; acoustic emission; data processing; quantitative analysis; DIAGNOSIS; VIBRATION; PLACEMENT; KURTOGRAM;

D O I：

10.1109/JSEN.2020.3015884

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Planetary gearbox is applied more and more extensively in the modern industry. Its condition directly determines the availability and the operation safety of the machinery system that utilizes it for power transmission. To enhance its reliability, an early fault detection method is proposed in this study, which is based on the acoustic emission (AE) technique and the improved variational mode decomposition (VMD). AE data are expected to contain more valuable information about the early fault than the vibration data. Mutual information is used to determine its layer that can avoid over-decomposition or under-decomposition. Then, energy entropy is used to analyze intrinsic mode functions extracted by the improved VMD. By comparing values of energy entropy, it is easy to distinguish different working conditions. The main contributions of this study include: 1) An improved VMD method for fault detection of planetary gearbox is proposed. 2) This method provides a novel strategy for detecting early fault in different positions of planetary gearbox by utilizing the advantages of AE technique.

引用

页码：1735 / 1745

页数：11

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