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A Signal Decomposition Method for Ultrasonic Guided Wave Generated from Debonding Combining Smoothed Pseudo Wigner-Ville Distribution and Vold–Kalman Filter Order Tracking
Joint Authors
Wu, Junhua
Ma, Zheshu
Chen, Xinglin
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-14
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Carbon fibre composites have a promising application future of the vehicle, due to its excellent physical properties.
Debonding is a major defect of the material.
Analyses of wave packets are critical for identification of the defect on ultrasonic nondestructive evaluation and testing.
In order to isolate different components of ultrasonic guided waves (GWs), a signal decomposition algorithm combining Smoothed Pseudo Wigner-Ville distribution and Vold–Kalman filter order tracking is presented.
In the algorithm, the time-frequency distribution of GW is first obtained by using Smoothed Pseudo Wigner-Ville distribution.
The frequencies of different modes are computed based on summation of the time-frequency coefficients in the frequency direction.
On the basis of these frequencies, isolation of different modes is done by Vold–Kalman filter order tracking.
The results of the simulation signal and the experimental signal reveal that the presented algorithm succeeds in decomposing the multicomponent signal into monocomponents.
Even though components overlap in corresponding Fourier spectrum, they can be isolated by using the presented algorithm.
So the frequency resolution of the presented method is promising.
Based on this, we can do research about defect identification, calculation of the defect size, and locating the position of the defect.
American Psychological Association (APA)
Wu, Junhua& Chen, Xinglin& Ma, Zheshu. 2017. A Signal Decomposition Method for Ultrasonic Guided Wave Generated from Debonding Combining Smoothed Pseudo Wigner-Ville Distribution and Vold–Kalman Filter Order Tracking. Shock and Vibration،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1204926
Modern Language Association (MLA)
Wu, Junhua…[et al.]. A Signal Decomposition Method for Ultrasonic Guided Wave Generated from Debonding Combining Smoothed Pseudo Wigner-Ville Distribution and Vold–Kalman Filter Order Tracking. Shock and Vibration No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1204926
American Medical Association (AMA)
Wu, Junhua& Chen, Xinglin& Ma, Zheshu. A Signal Decomposition Method for Ultrasonic Guided Wave Generated from Debonding Combining Smoothed Pseudo Wigner-Ville Distribution and Vold–Kalman Filter Order Tracking. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1204926
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204926