Paper
2 November 2023 Piezoelectric film-based online damage monitoring system for Human Occupied Vehicle structures
Zhongjun Ding, Dejian Meng, Zhiliang Feng, Yi Zhang, Dewei Li
Author Affiliations +
Proceedings Volume 12919, International Conference on Electronic Materials and Information Engineering (EMIE 2023); 129190N (2023) https://doi.org/10.1117/12.3010745
Event: 3rd International Conference on Electronic Materials and Information Engineering (EMIE 2023), 2023, Guangzhou,, China
Abstract
Current submersible structural health monitoring techniques suffer from poor positioning accuracy and insensitive perception of structural defects. The existing structural health detection techniques are investigated to address these problems, this paper presents an acoustic measurement system with passive listening triggering active detection is proposed. In this paper, a spherical receiver transducer array and a forked finger transducer are fabricated using polyvinylidene fluoride (PVDF) piezoelectric film as the core device. The system uses the receiver transducer array to receive acoustic signals and determine the location of structural damage based on the acoustic signals, and then actively triggers the fork-finger transducer at the corresponding location to generate acoustic surface waves to detect structural defects in titanium alloys. The feasibility of the designed system is verified through experiments, which show that the device can determine the orientation of the noise and whether a fracture has occurred in the structure.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Zhongjun Ding, Dejian Meng, Zhiliang Feng, Yi Zhang, and Dewei Li "Piezoelectric film-based online damage monitoring system for Human Occupied Vehicle structures", Proc. SPIE 12919, International Conference on Electronic Materials and Information Engineering (EMIE 2023), 129190N (2 November 2023); https://doi.org/10.1117/12.3010745
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KEYWORDS
Transducers

Acoustics

Acoustic waves

Acoustic emission

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