Experimental Modal Analysis of an Active Thin-Walled Composite Structure
Artykuł w czasopiśmie
MNiSW
100
Lista 2021
| Status: | |
| Autorzy: | Bocheński Marcin, Gawryluk Jarosław, Kłoda Łukasz |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2019 |
| Wersja dokumentu: | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 88 |
| Strony: | 112 - 117 |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Otwarte czasopismo |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 30 grudnia 2019 |
| Abstrakty: | angielski |
| In this study, a modal analysis of an active thin-walled composite box-beam is performed using different research methods. The box-beam was made of several unidirectional carbon-epoxy layers. The configuration of the composite plies enabled obtaining the expected bending-bending or bending-torsion vibration coupling. A Macro Fiber Composite (MFC) element was added to the structure. MFC elements can be used as a source of external excitation or actuator for a vibration control algorithm. Three experimental methods are applied. First, an experimental modal analysis based on impact testing is performed, in which the structure is excited by a modal hammer and its response is measured by an accelerometer. Second, the structure is excited using an electromagnetic shaker or an MFC actuator, and simultaneously its response is measured by a laser vibrometer. Third, the structure is excited with the MFC actuator during the recording of the structure’s dynamic response using an optical 3D measuring system. The impact of the applied methods on the extracted shape modes and natural frequencies is investigated. Additionally, the efficiency of MFC operation is tested for selected modes. The experimental findings are compared with the numerical results obtained by the finite element method (FEM). |
