http://www.cnr.it/ontology/cnr/individuo/prodotto/ID286848
Numerical and experimental acoustic performance investigations of a high-speed train composite sandwich panel (Articolo in rivista)
- Type
- Label
- Numerical and experimental acoustic performance investigations of a high-speed train composite sandwich panel (Articolo in rivista) (literal)
- Anno
- 2014-01-01T00:00:00+01:00 (literal)
- Alternative label
D.Siano, M.Viscardi, P.Napolitano, M.A.Panza (2014)
Numerical and experimental acoustic performance investigations of a high-speed train composite sandwich panel
in WSEAS transactions on applied and theoretical mechanics
(literal)
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- D.Siano, M.Viscardi, P.Napolitano, M.A.Panza (literal)
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- Note
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- M.viscardi - Università di Napoli \"Federico II\"
P.Napolitano - Università di Napoli \"Federico II\"
M.A.Panza - Università di Napoli \"Fedeico II\" (literal)
- Titolo
- Numerical and experimental acoustic performance investigations of a high-speed train composite sandwich panel (literal)
- Abstract
- Present work focuses on the implementation of numerical and experimental analyses aimed to acoustic performances characterization of a composite sandwich panel used for a high-speed train. Firstly, an experimental and a numerical modal analyses are presented. Starting from both FE simulation and impact testing outcomes, it has been possible to carry out a correlation study through the computation of the Modal
Assurance Criterion (MAC). Good agreement between numerical and experimental analyses has been found, therefore the definition of a reliable FE model has been obtained without the necessity of implementing a sensitivity and updating procedure. In this paper, to find a convenient and accurate mean for predicting the panel Transmission Loss parameter, the panel is modeled as a composite sandwich panel, and its TL is
predicted with the hybrid FE&SEA (Statistical Energy Analysis) method. The TL result is then compared to the experimental one, carried out through the employment of an intensity sound probe. A very good agreement has been found allowing to use such numerical procedure for further acoustic performances improvements.
Hence, future developments could regard the possibility to implement a Reverse Engineering procedure, in order to realize an optimization process by considering different materials and stratifications or different panel thicknesses, to improve the acoustic attenuation properties at those frequencies at which a worse acoustic
behavior of the panel, is present. (literal)
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