Structural health monitoring based on laser excitation vibration test and wavelet transform

Shanshan Cao; Itsuro Kajiwara; Xisheng Li; Naoki Hosoya

doi:10.1109/ICSensT.2017.8304432

Structural health monitoring based on laser excitation vibration test and wavelet transform

Shanshan Cao, Itsuro Kajiwara, Xisheng Li, Naoki Hosoya

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, a vibration testing and health monitoring system is proposed to detect damage in aluminum plate structures. This system is based on an impulse response excited by laser. A high power Nd:YAG pulse laser is used to produce an ideal impulse excitation via laser-ablation on an aluminum plate surface. The propagation, reflection and superposition of elastic wave will be happened in structures. Laser Doppler vibrometer is used for measuring data. And by means of spectrum analyzer and computer, wavelet transform is applied to analyze the waveform characteristics to detect and identify the location of the damage. The applicability of the present approach is validated by simulation and experimental results, demonstrating the ability of the method to detect and identify the location of damage induced on the aluminum plate structures.

Original language	English
Title of host publication	2017 11th International Conference on Sensing Technology, ICST 2017
Publisher	IEEE Computer Society
Pages	1-6
Number of pages	6
Volume	2017-December
ISBN (Electronic)	9781509065264
DOIs	https://doi.org/10.1109/ICSensT.2017.8304432
Publication status	Published - 2018 Feb 27
Event	11th International Conference on Sensing Technology, ICST 2017 - Sydney, Australia Duration: 2017 Dec 4 → 2017 Dec 6

Other

Other	11th International Conference on Sensing Technology, ICST 2017
Country	Australia
City	Sydney
Period	17/12/4 → 17/12/6

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Keywords

Damage Detection
Impulse Response
Laser Ablation
Laser Excitation
Vibration Test
Wavelet Transform

ASJC Scopus subject areas

Artificial Intelligence
Computer Science Applications
Signal Processing
Electrical and Electronic Engineering

Cite this

Cao, S., Kajiwara, I., Li, X., & Hosoya, N. (2018). Structural health monitoring based on laser excitation vibration test and wavelet transform. In 2017 11th International Conference on Sensing Technology, ICST 2017 (Vol. 2017-December, pp. 1-6). [8304432] IEEE Computer Society. https://doi.org/10.1109/ICSensT.2017.8304432

Structural health monitoring based on laser excitation vibration test and wavelet transform. / Cao, Shanshan; Kajiwara, Itsuro; Li, Xisheng; Hosoya, Naoki.

2017 11th International Conference on Sensing Technology, ICST 2017. Vol. 2017-December IEEE Computer Society, 2018. p. 1-6 8304432.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Cao, S, Kajiwara, I, Li, X & Hosoya, N 2018, Structural health monitoring based on laser excitation vibration test and wavelet transform. in 2017 11th International Conference on Sensing Technology, ICST 2017. vol. 2017-December, 8304432, IEEE Computer Society, pp. 1-6, 11th International Conference on Sensing Technology, ICST 2017, Sydney, Australia, 17/12/4. https://doi.org/10.1109/ICSensT.2017.8304432

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Access to Document

10.1109/ICSensT.2017.8304432