S-Parameter-Based Defect Localization for Ultrasonic Guided Wave SHM
نویسندگان
چکیده
منابع مشابه
Ultrasonic Guided Waves Based Method for Shm – Simulations and an Experimental Test
Guided waves based methods are widely used for damage detection and localization in metallic and composite structures. Success of the method application depends on many factors like sensors/actuators location, sensor electronic system design, sensor shape, frequency range of excitation waves and applied signal processing procedures. Authors developed new modified LISA and EFIT algorithms to sol...
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To improve the defect detectability of Lamb wave inspection systems, the application of nonlinear signal processing was investigated. The approach is based on a Warped Frequency Transform WFT to compensate the dispersive behavior of ultrasonic guided waves, followed by a Wigner-Ville time-frequency analysis and the Hough Transform to further improve localization accuracy. As a result, an automa...
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ژورنال
عنوان ژورنال: Aerospace
سال: 2020
ISSN: 2226-4310
DOI: 10.3390/aerospace7030033