Lamb Wave Directional Sensing with Piezoelectric Fiber Rosette in Structure Health Monitoring
Joint Authors
Shen, Yiping
Wang, Songlai
Wu, Wanrong
Li, Hui
Tang, Binlong
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-06-24
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Directional piezoelectric sensors can detect the Lamb wave propagation direction to locate damage in structural health monitoring (SHM).
The directivity of the round piezoelectric fiber is exploited with a 0°/45°/90° rosette configuration to acquire flexural Lamb wave signals.
The directional response of the piezoelectric fiber under narrowband tone-burst excitation is theoretically deduced.
Experimental tests are conducted to demonstrate the directivity and the frequency response property of the piezoelectric fiber under different excitation central frequencies in comparison with the MFC, rectangular piezoelectric sheet, and circular piezoelectric disc.
Continuous wavelet transform (CWT) is applied to extract the maximum response amplitude information of the acquired Lamb wave signal at a central frequency.
Experimental test results indicate that the piezoelectric fiber is capable to be used as a Lamb wave directional sensor than other piezoelectric sensors.
A numerical estimation method for the Lamb wave propagation direction is proposed by defining an error function between the theoretical and experimental normalized response amplitude.
The proposed method is generally applicable for different rosette configurations.
Experimental results validate the accuracy of the proposed estimation method.
The research results are significant to design or select the piezoelectric sensor to measure Lamb wave signals.
American Psychological Association (APA)
Wang, Songlai& Wu, Wanrong& Shen, Yiping& Li, Hui& Tang, Binlong. 2019. Lamb Wave Directional Sensing with Piezoelectric Fiber Rosette in Structure Health Monitoring. Shock and Vibration،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211394
Modern Language Association (MLA)
Wang, Songlai…[et al.]. Lamb Wave Directional Sensing with Piezoelectric Fiber Rosette in Structure Health Monitoring. Shock and Vibration No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1211394
American Medical Association (AMA)
Wang, Songlai& Wu, Wanrong& Shen, Yiping& Li, Hui& Tang, Binlong. Lamb Wave Directional Sensing with Piezoelectric Fiber Rosette in Structure Health Monitoring. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1211394
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1211394