The interaction of Lamb waves with defects : Alleyne, D.N.; Cawley, P. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. Vol. 39, No. 3, pp. 381–397. (May 1992) - ScienceDirectdoi:10.1016/S0963-8695(96)80275-1ELSEVIER...
The Effect of Discontinuities on the Long-range Propagation of Lamb Waves in Pipes Laboratory tests and supporting finite element predictions of the interaction of Lamb waves with typical features found in chemical plant pipework are repo... D,N,Alleyne,... - 《Proceedings of the Institution of...
Even if the incident wave is a pure Lamb mode, the interaction of a wave with a defect or structural feature can result in a complicated multimode signal due to mode conversions, since there may exist at least two propagating modes in a plate at any chosen testing frequency. It is ...
and aims to improve the feature learning ability from highly noise signals or complex backgrounds. Although the method is originally developed for vibration-based fault diagnosis, it can be applied to image recognition and speech recognition as well. The major innovation is the integration of soft ...
Ceramic membranes are gaining rapid traction in water and wastewater treatment applications due to their inherent advantages, such as chemical/thermal stab
The first implementation of end-to-end DNN for Lamb wave reconstruction.Comparison of two DNN models with compressive sensing approach.Investigation of synthetic and experimental data.Developed DNN models surpass classic CS methods.关键词: Lamb waves Structural health monitoring Compressive sensing Super-...
A2 and S2 Lamb waves propagating in a single steel plate with liquid loading,where these specific Lamb wave modes only have the horizontal displacement component at the plate surface.The present results show that the specific S2 Lamb wave mode has a slight dispersion,and is sensitive to the ...
The interaction of cylindrically guided waves with discontinuities in the geometry of the waveguide is a topic that has stimulated a great deal of interest. The reflected or transmitted signals are closely related to the geometric parameters of discontinuities in pipes. Therefore, it is believed that...
The aim of this work is to demonstrate the use of a commercial finite element package, ABAQUS EXPLICIT, to model ultrasonic guided waves in structural components. The particular application of interest is modeling the interaction of a broadband vertical bending mode with transverse-type defects in ...
In the case of a rough plate, Lamb waves have been used since they are sensitive to the roughness [7], [8], [9]. Their interaction with the rough surface gives rise to converted modes. In the case of a periodic grating, the incident, the retro-converted wavenumbers and the grating ...