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 |
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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 | |
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 |
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Country | Australia |
City | Sydney |
Period | 17/12/4 → 17/12/6 |
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