Experimental vs. analytical modal analysis of a composite circumferentially asymmetric stiffness box beam
Materiały konferencyjne
MNiSW
15
WOS
| Status: | |
| Autorzy: | Latalski Jarosław, Kowalczuk Marcin |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2018 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 1 |
| Wolumen/Tom: | 1922 |
| Numer artykułu: | 100018 |
| Strony: | 1 - 7 |
| Web of Science® Times Cited: | 5 |
| Scopus® Cytowania: | 5 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | TAK |
| Nazwa konferencji: | 22nd International Conference on Computer Methods in Mechanics |
| Skrócona nazwa konferencji: | CMM 2017 |
| URL serii konferencji: | LINK |
| Termin konferencji: | 13 września 2017 do 16 września 2017 |
| Miasto konferencji: | Lublin |
| Państwo konferencji: | POLSKA |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 8 stycznia 2018 |
| Abstrakty: | angielski |
| This paper presents a theoretical vs. experimental modal analysis of a composite thin-walled beam featuring a circumferentially asymmetric stiffness (CAS) profile characteristics. The adopted lamination scheme results in the complex elastic defmnation modes exhibiting mutual coupling of flapwise bending, transverse shear and torsion. The analytical model used in this study is based on the authors previous research and takes into account most classical and non-classical effects specific for thin-walled composite structures. The theoretical outcomes are compared to experimental ones obtained by two different test methods, namely an impact hammer test and a laser vibrometer test. In this second experiment the macro fibre composite (MFC) patch actuators have been used to excite the system. For comparative purposes two different transducer types providing different excitation load have been examined. The performed analytical and laboratory experiments demonstrate extremely high consistent findings irrespective of the means of excitation. Therefore, the laser-based motion analysis system combined with piezo-actuator excitation may be considered as a feasible and accurate method for static and dynamic experiments on systems exhibiting complex deformation modes. These include also highly flexible structures where the deformations can not be measured by conventional contact methods e.g. due to the influence of an accelerometer mass. The discussed laser-based motion measuring technique can also be used in future modal analysis experiments on rotating beams. |
