Control of bending wave reflection at beam terminations by thermally tunable subwavelength resonators

Guillaume Raybaud (1) , Morvan Ouisse (2) , Julien Leng (1) , Adrien Pelat (1) , Jean-Philippe Groby (1) , Vicente Romero-Garcia (1) , Rubén Pico (3) , François Gautier (1)

1 LAUM - Laboratoire d'Acoustique de l'Université du Mans
2 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
3 UPV - Universitat Politècnica de València = Universitad Politecnica de Valencia = Polytechnic University of Valencia

The perfect absorption of bending waves by thermally tunable subwavelength absorbers is analytically and experimentally demonstrated in this work for a reflection problem in beams. These absorbers are local resonators located at the end of a semi-infinite beam and consist of

Domaines: Mécanique [physics]

Guillaume Raybaud, Morvan Ouisse, Julien Leng, Adrien Pelat, Jean-Philippe Groby, et al.. Control of bending wave reflection at beam terminations by thermally tunable subwavelength resonators. Journal of Sound and Vibration, 2022, 530, pp.116918 (9). ⟨10.1016/j.jsv.2022.116918⟩. ⟨hal-03700819⟩