A New Method of Denoising of Vibration Signal and Its Application

doi:10.1155/2020/7587840

CORC > 兰州理工大学 > 兰州理工大学

	A New Method of Denoising of Vibration Signal and Its Application
	Miao, Feng 1; Zhao, Rongzhen 2; Wang, Xianli 1
刊名	Shock and Vibration
	2020
卷号	2020
关键词	Impulse noise Machinery Median filters Vibration analysis Wavelet analysis White noise Adaptive wavelet packets Denoising methods ITS applications Mixed complexes Noise components Sampling frequencies Simulation signals Vibration signal
ISSN号	10709622
DOI	10.1155/2020/7587840
英文摘要	In order to improve the performance of the denoising method for vibration signals of rotating machinery, a new method of signal denoising based on the improved median filter and wavelet packet technology is proposed through analysing the characteristics of noise components and relevant denoising methods. Firstly, the window width of the median filter is calculated according to the sampling frequency so that the impulse noise and part of the white noise can be effectively filtered out. Secondly, an improved self-adaptive wavelet packet denoising technique is used to remove the residual white noise. Finally, useful vibration signals are obtained after the previous processing. Simulation signals and rotor experimental vibration signals were used to verify the performance of the method. Experiment results show that the method can not only effectively eliminate the mixed complex noises but also preserve the fault character details, which demonstrates that the proposed method outperforms the method based on the wavelet-domain median filter. © 2020 Feng Miao et al.
WOS研究方向	Acoustics ; Engineering ; Mechanics
语种	英语
出版者	Hindawi Limited, 410 Park Avenue, 15th Floor, 287 pmb, New York, NY 10022, United States
WOS记录号	WOS:000540533600007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115355]
专题	兰州理工大学
作者单位	1.School of Physical and Electrical Information, Luoyang Normal University, Luoyang; 471022, China; 2.Key Laboratory of Digital Manufacturing Technology and Application, Ministry of Education, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Miao, Feng,Zhao, Rongzhen,Wang, Xianli. A New Method of Denoising of Vibration Signal and Its Application[J]. Shock and Vibration,2020,2020.
APA	Miao, Feng,Zhao, Rongzhen,&Wang, Xianli.(2020).A New Method of Denoising of Vibration Signal and Its Application.Shock and Vibration,2020.
MLA	Miao, Feng,et al."A New Method of Denoising of Vibration Signal and Its Application".Shock and Vibration 2020(2020).