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Noise elimination algorithm for modal analysis
Bao, X. X.1; Li, C. L.2; Xiong, C. B.3
AbstractModal 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.
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WOS IDWOS:000358924200028
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.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
Recommended Citation
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):0.
APA Bao, X. X.,Li, C. L.,&Xiong, C. B..(2015).Noise elimination algorithm for modal analysis.APPLIED PHYSICS LETTERS,107(4),0.
MLA Bao, X. X.,et al."Noise elimination algorithm for modal analysis".APPLIED PHYSICS LETTERS 107.4(2015):0.
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