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Giovanni Fasulo, Luigi Federico, Adolfo Sollazzo, Luciano De Vivo and Roberto Citarella
A rocket?s turbulent jet radiates intense acoustic waves, which are an acoustic load for structural components like payload, launch structure, and rocket avionics, and impact communities near the launch site. Therefore, a careful characterization of the ...
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Giovanni Fasulo, Pasquale Vitiello, Luigi Federico and Roberto Citarella
The purpose of this work is to characterise the vibro-acoustic behaviour of rectangular flat panels reinforced by ?unconventional? stiffeners. Such panels are being increasingly employed in the aircraft industry in the case of composite fuselage, so that...
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Aref Mehditabar, Saeid Ansari Sadrabadi, Raffaele Sepe, Enrico Armentani, Jason Walker and Roberto Citarella
The present research is concerned with the elastic?plastic responses of functionally graded material (FGM) pipe, undergoing two types of loading conditions. For the first case, the FGM is subjected to sustained internal pressure combined with a cyclic be...
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Alessandro Borrelli, Giuseppe D?Errico, Corrado Borrelli and Roberto Citarella
The objective of this study was to apply an innovative technique to manufacture a plastic automotive component to reduce its weight and costs, and guarantee its design was safe. A frontal impact sled test was simulated, and the damages to the occupant?s ...
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Prabhakar Sathujoda, Aneesh Batchu, Bharath Obalareddy, Giacomo Canale, Angelo Maligno and Roberto Citarella
The present work deals with natural and whirl frequency analysis of a porous functionally graded (FG) rotor?bearing system using the finite element method (FEM). Stiffness, mass and gyroscopic matrices are derived for porous and non-porous FG shafts by d...
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Venanzio Giannella, Francesco Branda, Jessica Passaro, Giuseppe Petrone, Mattia Barbarino and Roberto Citarella
This work illustrates the development of passive noise control (PNC) improvements of aircraft headrests to enhance the acoustic comfort for passengers. Two PNC improvements were studied with the aim of reducing the noise perceived by passengers during fl...
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Enrico Armentani, Venanzio Giannella, Roberto Citarella, Antonio Parente and Mauro Pirelli
In this work, the vibration behavior of a 4-cylinder, 4-stroke, petrol engine was simulated by leveraging on the Finite Element Method (FEM). A reduced modelling strategy based on the component mode synthesis (CMS) was adopted to reduce the size of the f...
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Enrico Armentani, Francesco Caputo, Luca Esposito, Venanzio Giannella and Roberto Citarella
In this paper, a multibody calculation methodology has been applied to the vibration analysis of a 4-cylinder, 4-stroke, turbocharged diesel engine, with a simulation driven study of the angular speed variation of a crankshaft under consideration of diff...
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