Experimental Study on the Effectiveness of Polyurethane Flexible Adhesive in Reduction of Structural Vibrations - Publikacja - MOST Wiedzy

Wyszukiwarka

Experimental Study on the Effectiveness of Polyurethane Flexible Adhesive in Reduction of Structural Vibrations

Abstrakt

The aim of the present study is to consider the idea of using polyurethane flexible adhesive in to reduce the vibrations in structures exposed to dynamic loads and evaluate their damping properties in relation to large deformations. Firstly, two aluminium cantilever beams, simulating structural elements (without and with polyurethane layer in the form of tape), were analysed, in order to check the damping of the unconstrained polymer layer. In the second stage of the study, a composite beam consisting of two aluminium flat beams bonded with polymer adhesive was considered, so as to check the damping of the constrained polymer layer. Dynamic parameters, such as modes of free vibrations, corresponding natural frequencies and damping ratios, were determined and compared. The third stage of the investigation was aimed at solving the problem of the additional mass of the applied polymer layer, which influences the frequencies and damping of the tested structure. A special separating procedure is proposed that makes it possible to calculate the corrected real values of the polymer layer’s damping. The results of the study clearly show that the response of the composite aluminium beam with and without polymer adhesive layer is mainly influenced by the layers’ thickness and the large strain deformation, in terms of its damping characteristics. The use of polymer adhesive layers in constrained and unconstrained conditions leads to a significant reduction in the vibrations of tested beams, while preserving their stiness at nearly the same level. The applied analysis procedure made it possible for us to separate the damping properties of the analysed polymer layers and evaluate them independently with respect to the influence of integrated structural elements on damping.

Cytowania

  • 5

    CrossRef

  • 5

    Web of Science

  • 5

    Scopus

Cytuj jako

Pełna treść

pobierz publikację
pobrano 6 razy
Wersja publikacji
Accepted albo Published Version
Licencja
Creative Commons: CC-BY otwiera się w nowej karcie

Słowa kluczowe

Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
Polymers nr 12,
ISSN: 2073-4360
Język:
angielski
Rok wydania:
2020
Opis bibliograficzny:
Lasowicz N., Kwiecień A., Jankowski R.: Experimental Study on the Effectiveness of Polyurethane Flexible Adhesive in Reduction of Structural Vibrations// Polymers -Vol. 12,iss. 10 (2020), s.2364-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/polym12102364
Weryfikacja:
Politechnika Gdańska

wyświetlono 11 razy

Publikacje, które mogą cię zainteresować

Meta Tagi