Nonlinear experimental dynamics of a pentastable composite cantilever shell
Artykuł w czasopiśmie
MNiSW
140
Lista 2024
| Status: | |
| Autorzy: | Kłoda Łukasz, Melnyk Danyil, Brunetti Matteo, Warmiński Jerzy, Mitura Andrzej, Romeo Francesco |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2025 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 113 |
| Strony: | 30515 - 30541 |
| Impact Factor: | 6,0 |
| Web of Science® Times Cited: | 2 |
| Scopus® Cytowania: | 2 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | This research was funded in whole or in part by National Science Centre, Poland 2021/41/B/ST8/03190. For the purpose of Open Access, the author has applied a CC-BY public copyright licence to any Author Accepted Manuscript (AAM) version arising from this submission. DM declares support by NAWA STER Programme Internationalization of the Doctoral School of Lublin University of Technology- IDeaS of LUT. MBacknowledges the Italian National Group of Mathematical Physics INdAM-GNFM and the support from the Polytechnic Department of Engineering and Architecture of the University of Udine through the project “ESPeRT”. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| A composite shell with conical geometry, featuring opposite curvatures in its free (undeformed) configuration, is studied. Prestress is applied by first flattening and then clamping one of the curved edges, leading to a morphing structure. The shell exhibits five distinct static equilibria, referred to as configurations I, J, L, S, and I∗. Based on experimental measurements and numerical models, the rich potential energy topol- ogy is qualitatively reconstructed. The linear dynam- ics of the cantilevered shell is investigated at first through various scenarios of kinematic excitation over a wide range of frequencies (up to 100 Hz). Frequencyresponse curves, time series, phase portraits, Poincaré maps, fast Fourier transforms and largest Lyapunov exponents are used to investigate in-well, cross-well, and global nonlinear dynamics. Depending on the forc- ing amplitude and frequency, one-way and reversible snap-through is observed. The extensive experimental campaign allows to unveil the dynamic interplay among the observed five stable configurations. |
