Modal Analysis of Laminated “CAS” and “CUS” Box-Beams

• Autorzy: Gawryluk J. , Bocheński M. , Teter A.

Identyfikatory

DOI

10.1515/meceng-2017-0026

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

thin-walled structures; composite; finite element method; FEM; coupling; vibration; eigenvalue problem; experimental method

PL

struktury cienkościenne; kompozyt; metoda elementów skończonych; MES; sprzężenie; wibracje; zagadnienie własne; metoda eksperymentalna

• Wydawca: Komitet Budowy Maszyn PAN
• Czasopismo: Archive of Mechanical Engineering
• Rocznik: 2017
• Tom: Vol. LXIV, nr 4
• Strony: 441--454
• Opis fizyczny: Bibliogr. 21 poz., fot., rys., tab.

Twórcy

autor

Gawryluk J.

• Department of Applied Mechanics, Mechanical Engineering Faculty, Lublin University of Technology, Nadbystrzycka 36,20-618 Lublin, Poland

autor

Bocheński M.

• Department of Applied Mechanics, Mechanical Engineering Faculty, Lublin University of Technology, Nadbystrzycka 36,20-618 Lublin, Poland

autor

Teter A.

• Department of Applied Mechanics, Mechanical Engineering Faculty, Lublin University of Technology, Nadbystrzycka 36,20-618 Lublin, Poland

Bibliografia

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Uwagi

EN

1. This research was financially supported by the Polish National Science Centre under Research Grant No. DEC-2012/07/B/ST8/03931.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).