[HTML][HTML] Exact closed forms for the transfer matrix of free oscillations in finite periodic Timoshenko–Ehrenfest beams

JC Torres-Guzmán, A Díaz-de-Anda… - Results in Physics, 2024 - Elsevier
In this work, we obtain closed-form expressions for the transfer matrix of free oscillations in
finite periodic Timoshenko–Ehrenfest beams with an arbitrary number of cells. By invoking …

Experimental testing of Timoshenko predictions of supercritical natural frequencies and mode shapes for free-free beams

M Brøns, JJ Thomsen - Journal of Sound and Vibration, 2019 - Elsevier
In this experimental work a scanning laser Doppler vibrometer is used to measure mode
shapes and natural frequencies of beam bending vibrations above the critical frequency …

Anderson localization of flexural waves in disordered elastic beams

JC Ángel, JCT Guzmán, AD de Anda - Scientific Reports, 2019 - nature.com
We study, both experimentally and numerically, the Anderson localization phenomenon in
flexural waves of a disordered elastic beam, which consists of a beam with randomly spaced …

Degenerate normal-mode states above the cutoff frequency as analogs of the thickness-shear mode for finite Timoshenko–Ehrenfest beams with free ends

W Rodríguez-Cruz, JC Torres-Guzmán… - Journal of Sound and …, 2023 - Elsevier
In this work, we demonstrate, analytically and numerically, that degenerate states of a beam
with free ends, with anti-symmetrical transverse mode shape and occurring in the first …

Experimental measurement of the flexural spectrum of a vibrating beam above the critical frequency

J Calleja-Ángel… - … of Vibration and …, 2019 - asmedigitalcollection.asme.org
In this paper, we report the bending spectrum measured experimentally on oscillating
beams with free extremes in a frequency range below and above the cutoff or critical …