Acoustic Emission Signal Feature Extraction in Rotor Crack Fault Diagnosis

被引：7
|
作者：
He, Kuanfang [1 ]
Wu, Jigang [2 ]
Wang, Guangbin [2 ]
机构：
[1] Hunan Univ Sci & Technol, Hunan Prov Key Lab Hlth Maintenance Mech Equipmen, Xiantan 411201, Peoples R China
[2] Hunan Univ Sci & Technol, Minist Educ, Engn Res Ctr Adv Mine Equipment, Xiangtan 411201, Peoples R China
来源：
JOURNAL OF COMPUTERS | 2012年 / 7卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Rotor crack; acoustic emission; wavelet packet; fault diagnosis;
D O I：
10.4304/jcp.7.9.2120-2127
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
On the rotor comprehensive fault simulation testbed, characteristics of acoustic emission signal of different crack rotors in various depth and conditions are analyzed by the acoustic emission extraction experiment. The noise-eliminating method of the acoustic emission signal was researched by the wavelet packet technique, the characteristics of acoustic emission signal of the rotor crack was also obtained for fault diagnosis in this paper. The advantages of acoustic emission technique have been highlighted in the early period crack fault diagnosis compared to the vibration method of crack fault diagnosis. The diagnosis results were shown to be quite clear, reliable and accurate.
引用
收藏
页码：2120 / 2127
页数：8
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