Wave propagation in an auxetic core embedding resonators
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Wave propagation in an auxetic core embedding resonators |
| Type de publication | Conference Paper |
| Year of Publication | 2018 |
| Auteurs | Campana M.A, Scarpa F., Ouisse M., Sadoulet-Reboul E. |
| Editor | Desmet W, Pluymers B, Moens D, Rottiers W |
| Conference Name | PROCEEDINGS OF INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING (ISMA2018) / INTERNATIONAL CONFERENCE ON UNCERTAINTY IN STRUCTURAL DYNAMICS (USD2018) |
| Publisher | KU Leuven, Dept Mech Engn |
| Conference Location | CELESTIJNENLAAN 300B, HEVERLEE, B-3001, BELGIUM |
| ISBN Number | 978-90-73802-99-5 |
| Résumé | Stop bands in auxetic periodic structures including resonators are investigated in this paper. In aerospace field, sandwich panels like honeycombs are mainly used for their structural properties, and can present some advantages for vibroacoustics control. Auxetic structures seem to give enhanced properties for wave propagation control, and have been used here to perform the analysis. Resonators are included to open resonant band gaps in addition to the Bragg band gaps given by the periodicity of the core. Studies on the number of resonators inside the unit cell have been performed for a constant mass to identify the configuration which are able to open stop bands at low frequency range. Also, a parametric analysis on the resonator properties is done to compare the benefit concerning wave propagation while having a reasonable added mass for the core structure. |