Results 31 to 40 of about 2,905,814 (268)
Wireless actuation of bulk acoustic modes in micromechanical resonators [PDF]
, 2016 We report wireless actuation of a Lamb wave micromechanical resonator from a distance of over 1 m with an efficiency of over 15%. Wireless actuation of conventional micromechanical resonators can have broad impact in a number of applications from ...
Brown, Benjamin +3 more
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Shock and Vibration, 2017 Lamb waves have shown promising advantages for damage identification in thin-walled structures. Multiple modes of Lamb wave provide diverse sensitivities to different types of damage.
Zijian Wang, Pizhong Qiao, Binkai Shi
doaj +1 more source
Detection of coatings within liquid-filled tubes and containers by mode conversion of leaky Lamb waves [PDF]
Journal of Sensors and Sensor Systems, 2013 In this paper, a new acoustic sensor principle for coating detection within liquid-filled tubes and containers based on mode conversion of leaky Lamb waves is introduced.
M. Schmitt +6 more
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Three-dimensional edge waves in plates [PDF]
, 2007 This paper describes the propagation of three-dimensional symmetric waves localized near the traction-free edge of a semi-infinite elastic plate with either traction-free or fixed faces.
Kaplunov, JD, Zernov, V
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Air-coupled, focused ultrasonic dispersion spectrum reconstruction in plates [PDF]
, 2004 This paper presents and demonstrates a noncontact method for measuring the Lamb wave dispersion spectrum of a plate. Noncontact air-coupled source and receive transducers are used with line-focus mirrors and 50–700 kHz broadband apparatus for ...
Chimenti D. E. +11 more
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Lamb Wave Directional Sensing with Piezoelectric Fiber Rosette in Structure Health Monitoring
Shock and Vibration, 2019 Directional piezoelectric sensors can detect the Lamb wave propagation direction to locate damage in structural health monitoring (SHM). The directivity of the round piezoelectric fiber is exploited with a 0°/45°/90° rosette configuration to acquire ...
Songlai Wang +4 more
doaj +1 more source
Numerical modeling and measurement by pulsed television holography of ultrasonic displacement maps in plates with through-thickness defects [PDF]
, 2010 We present a novel numerical modeling of ultrasonic Lamb and Rayleigh wave propagation and scattering by through-thickness defects like holes and slots in homogeneous plates, and its experimental verification in both near and far field by a self ...
Amlani, Faisal +6 more
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Sensors, 2018 Peridynamic based elastodynamic computation tool named Peri-elastodynamics is proposed herein to simulate the three-dimensional (3D) Lamb wave modes in materials for the first time.
Subir Patra +2 more
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Global Winds Shape Planetary‐Scale Lamb Waves
Geophysical Research Letters, 2023 In 2022, the Hunga volcano eruption in Tonga generated atmospheric pressure waves that propagated globally and produced tsunamis in all the world's oceans.
Ignacio Sepúlveda +2 more
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Subsonic Lamb waves in anisotropic plates [PDF]
Quarterly of Applied Mathematics, 2002 A six-dimensional complex formalism for analysis of Lamb waves propagating with subsonic speed in anisotropic plates is formulated. Conditions for nonexistence of certain Lamb waves in anisotropic plates are obtained. An example of a transversely isotropic plate having “forbidden” speed at which no subsonic Lamb wave propagates is presented.
openaire +1 more source