Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"vibro-acoustics"”.
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Vibro-acoustics of porous materials with periodic inclusions
… and poro-elastic media are widely used for vibroacoustic applications, they suffer from a lack of performances at low frequencies compared to their efficiency at higher ones. This issue is generally overcome by multi-layering; anyway, the efficiency of such systems depends on the allowable …
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Comfort studies on aircraft interior sound and vibration
… the effects of combined sound and vibration (vibro-acoustics) on comfort sensation in aircraft. In the first study, seven cruising situations were presented in an aircraft mock-up and rated by 117 subjects using 15 polarities of a semantic differential. Principal component analyses proved that …
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Vibro-acoustic optimization of panel with curvilinear stiffeners
With the development of manufacturing techniques such as the Electron Beam Free Form Fabrication (EBF3), a metal deposition technique which deposits metal in complex shapes on a metallic base plate, it has become easy to manufacture complex shapes such as panels with curvilinear stiffeners. …
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Statistical Vibro-Acoustic Modelling of Nonlinear Systems with Applications in Vehicles
… focused in developing computationally efficient vibro-acoustic models to predict the statistical structural-acoustic response of a system to random inputs, as well as analysing the degree of dependency of the response to nonlinear behaviour in the interface between the excitation and the …