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Journal Articles Journal of Sound and Vibration Year : 2016

Nonlinear targeted energy transfer of two coupled cantilever beams coupled to a bistable light attachment

P.-O Mattei
R Ponçot
  • Function : Author
M Pachebat
Renaud Côte

Abstract

In order to control the sound radiation by a structure, one aims to control vibration of radiating modes of vibration using " Energy Pumping " also named " Targeted Energy Transfer ". This principle is here applied to a simplified model of a double leaf panel. This model is made of two beams coupled by a spring. One of the beams is connected to a nonlinear absorber. This nonlinear absorber is made of a 3D-printed support on which is clamped a buckled thin small beam with a small mass fixed at its center having two equilibrium positions. The experiments showed that, once attached onto a vibrating system to be controlled, under forced excitation of the primary system, the light bistable oscillator allows a reduction of structural vibration up to 10 dB for significant amplitude and frequency range around the first two vibration modes of the system.
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Dates and versions

hal-01318317 , version 1 (19-05-2016)

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P.-O Mattei, R Ponçot, M Pachebat, Renaud Côte. Nonlinear targeted energy transfer of two coupled cantilever beams coupled to a bistable light attachment. Journal of Sound and Vibration, 2016, ⟨10.1016/j.jsv.2016.03.008⟩. ⟨hal-01318317⟩
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