Active Guided Wave Phased Array Monitoring System for Vehicle-mounted Composite Hydrogen Storage Tanks

Mingxuan Tang; Liang Zheng

doi:10.54691/5w3fny03

Authors

Mingxuan Tang
Liang Zheng

DOI:

https://doi.org/10.54691/5w3fny03

Keywords:

Structural Health Monitoring; On-board Hydrogen Storage Tank; Ultrasonic Guided Wave; Phased Array; Zynq SoC; Total Focusing Method.

Abstract

To address the safety hazards caused by potential damage to the core component of hydrogen energy vehicles-the IV/V type composite hydrogen storage tank-during its service life, this paper proposes an online structural health monitoring (SHM) system based on active ultrasonic guided wave technology. The system utilizes a piezoelectric transducer linear phased array to perform periodic high-resolution scanning of the hydrogen storage tank structure. The hardware platform of the system is centered around a Zynq, complemented by a 16-channel synchronous sampling analog front end, aiming to achieve full matrix capture data acquisition and total focusing method imaging. This paper focuses on analyzing the advantages and challenges of non-dispersive shear horizontal waves compared to traditional Lamb waves in anisotropic curved structures, and determines the technical path of using shear mode transducers PZT as sensors. The research aims to provide a complete technical route and solution for the development of an intelligent monitoring system capable of adapting to complex on-board environments and achieving precise imaging of early defects in hydrogen storage tanks.

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