Noise elimination algorithm for modal analysis

doi:10.1063/1.4927642

	Noise elimination algorithm for modal analysis
	Bao, X. X.1; Li, C. L.2; Xiong, C. B.3
刊名	APPLIED PHYSICS LETTERS
	2015-07-27
卷号	107 期号:4
ISSN号	0003-6951
DOI	10.1063/1.4927642
英文摘要	Modal analysis is an ongoing interdisciplinary physical issue. Modal parameters estimation is applied to determine the dynamic characteristics of structures under vibration excitation. Modal analysis is more challenging for the measured vibration response signals are contaminated with noise. This study develops a mathematical algorithm of structured low rank approximation combined with the complex exponential method to estimate the modal parameters. Physical experiments using a steel cantilever beam with ten accelerometers mounted, excited by an impulse load, demonstrate that this method can significantly eliminate noise from measured signals and accurately identify the modal frequencies and damping ratios. This study provides a fundamental mechanism of noise elimination using structured low rank approximation in physical fields. (C) 2015 AIP Publishing LLC.
资助项目	National Natural Science Foundation of China[51309239] ; National Natural Science Foundation of China[41206042]
WOS关键词	SURFACE-EMITTING LASER ; IDENTIFICATION ; CAVITY ; REMOVAL ; ARRAYS ; MODES ; ORDER ; TIME
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000358924200028
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25948]
专题	自然资源部第一海洋研究所
通讯作者	Bao, X. X.
作者单位	1.China Univ Petr East China, Dept Naval Architecture & Ocean Engn, Qingdao 266580, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 3.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Bao, X. X.,Li, C. L.,Xiong, C. B.. Noise elimination algorithm for modal analysis[J]. APPLIED PHYSICS LETTERS,2015,107(4).
APA	Bao, X. X.,Li, C. L.,&Xiong, C. B..(2015).Noise elimination algorithm for modal analysis.APPLIED PHYSICS LETTERS,107(4).
MLA	Bao, X. X.,et al."Noise elimination algorithm for modal analysis".APPLIED PHYSICS LETTERS 107.4(2015).