Interlocked hybrid-cell Kirigami inspired cellular structures and their vibroacoustic performance
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Interlocked hybrid-cell Kirigami inspired cellular structures and their vibroacoustic performance |
| Type de publication | Conference Paper |
| Year of Publication | 2018 |
| Auteurs | Del Broccolo S., Ouisse M., Foltete E., Scarpa F. |
| 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 | Sandwich panels are widely used in applications where high stiffness and low weight structures have become an asset, such as the aerospace segment. The environment in which those panels are used produce uncomfortable vibrations in the low-mid range which also may induce inefficiency. This hybrid cellular core obtained with a Kirigami derived technique and intended to be used for sandwich panels, is investigated, parametrically, by performing numerical simulations and varying the topology. The vibration filtering characteristic of this innovative cellular core is compared to more classic configurations. The comparison is carried out using the Wave Finite Element Method (WFEM) by analysing only the unit cell thanks to the Floquet-Bloch theorem periodic conditions. Harmonic numerical simulations using commercial FEA software are also carried out to illustrate the validity of the bandgaps location and width. We will base the vibration performance evaluation analysing in-plane and out-of-plane bandgaps. |