- Tytuł:
- Modal Analysis of Laminated “CAS” and “CUS” Box-Beams
- Autorzy:
-
Gawryluk, J.
Bocheński, M.
Teter, A. - Powiązania:
- https://bibliotekanauki.pl/articles/140267.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
thin-walled structures
composite
finite element method
FEM
coupling
vibration
eigenvalue problem
experimental method
struktury cienkościenne
kompozyt
metoda elementów skończonych
MES
sprzężenie
wibracje
zagadnienie własne
metoda eksperymentalna - Opis:
- In the paper, the authors discuss the numerical and experimental modal analysis of the cantilever thin-walled beams made of a carbon-epoxy laminate. Two types of beams were considered: circumferentially asymmetric stiffness (i.e., CAS) and circumferentially uniform stiffness (i.e., CUS) beams. The layer-up configurations of the laminate were chosen to get a vibration mode coupling effect in both analysed cases. The aim of the paper was to perform the numerical and experimental modal analysis of the composite structures, when a flapwise bending with torsion coupling effect or flapwise-chordwise bending coupling effect took place. Firstly, numerical studies by the finite element method was performed. The numerical simulations were carried out by the Lanczos method in the Abaqus software package. The natural frequencies and the corresponding free vibration modes were determined. Next, the experimental modal analyses of the CAS and CUS beams were performed. The test stand was consisted of a special grip, two beams with an adhered holder, the LMS Scadas III system with a modal hammer and an acceleration sensor. Finally, the results of both methods were compared.
- Źródło:
-
Archive of Mechanical Engineering; 2017, LXIV, 4; 441-454
0004-0738 - Pojawia się w:
- Archive of Mechanical Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł