Browsing by Subject "Acoustics"
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ItemA study of closed loop control for BVI noise reduction by multiple pressure sensors( 2007) Noboru, K. ; Saito, S. ; Fuse, H.
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ItemAcoustic comfort optimization in a H175 helicopter( 2016) Hallez, R. ; Paillasseur, S. ; Lamotte, L. ; Caillet, J. ; Roulois, G.
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ItemAcoustic design and testing of the Eurocopter EC145T2 and EC175B - A harmonized Franco-German approach( 2013) Gareton, V. ; Gervais, M. ; Heger, R.
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ItemAcoustic flight test of the EC130 B4 in the scope of the Friendcopter project( 2007) Marze, H.-J. ; Gervais, M. ; Martin, P. ; Dupont, P.
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ItemAcoustic liner design for FENESTRON® noise reduction( 2016) Pongratz, R. ; Redmann, D.
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ItemAcoustic liners integration on a turboshaft engine( 2004) Joubert, Ph. ; Ortiz, M.L. ; Baude, P.
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ItemAcoustic scattering experiments on spheres for studying helicopter noise scattering( 2016) Yin, J. ; Rossignol, K.-S. ; Bulté, J.
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ItemAcoustic validation of a new code using particle wake aerodynamics and geometrically-exact beam structural dynamics( 2003) Opoku, D.G. ; Nitzsche, F.
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ItemAcoustical methods towards accurate prediction of rotorcraft fuselage scattering( 2016) Barbarino, M. ; Bianco, D. ; Yin, J. ; Lummer, M. ; Reboul, G. ; Gennaretti, M. ; Bernardini, G. ; Testa, C.
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ItemActively controlled rotor: aerodynamic and acoustic benefit for the helicopter today and tomorrow( 2008) Altmikus, A. ; Dummel, A. ; Heger, R. ; Schimke, D.
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ItemAdaptive active experiment to reduce multi-tonal noise in a generic composite helicopter cabin( 2000) Simon, F. ; Pauzin, S.
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ItemAeroacoustic analysis of main rotor - Tail rotor interaction( 2008) Fletcher, T.M. ; Duraisamy, K. ; Brown, R.E.
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ItemAeroacoustic flight test data analysis and guidelines for noise-abatement-procedure design and piloting( 2008) Spiegel, P. ; Guntzer, F. ; Le Duc, A. ; Buchholz, H.
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ItemAerofoil-vortex interaction simulation using the compressible vorticity confinement method( 2003) Morvant, R. ; Badcock, K.J. ; Barakos, G.N. ; Richards, B.E.
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ItemAn experimental study of on-blade active tab for helicopter noise reduction( 2004) Noboru, K. ; Akasaka, T. ; Kondo, N. ; Saito, S. ; Tanabe, Y.
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ItemAnalysis of tail rotor noise reduction benefits using HeliNOVI aeroacoutics main/tail rotor test and post-test prediction results( 2006) J. Yin ; Dummel, A. ; Falchero, D. ; Pidd, M. ; Prospathoulous, J. ; Visingardi, A. ; Voutsinas, S.G.
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ItemAnalytical model for blade-vortex interaction noise( 2000) Campos, L.M.B.C. ; Lau, F.J.P.
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ItemANCORA: Anotec-Comoti rotorcraft acoustics initiative for preliminary acoustic flight tests for the tuning of simplified rotorcraft noise models( 2015) Van Oosten, N. ; Dragasanu, L. ; Cenedese, F.One of the objectives of Clean Sky GRC5 is to implement a tool for the minimisation of noise impact on the ground, capable of being executed on-board "on-the-fly", providing flight directives to the Flight Management System of the helicopter. The semi-empirical model to be used for this purpose requires information to be derived from experimental data. For this purpose noise measurements have to be made simultaneously on the exterior of the helicopter (i.e. close to the noise source) and on the ground. The main objective of the ANCORA project was to develop the measurement systems and methodologies required to derive the transfer functions between on-board and ground-based microphones and validate them with flight tests.
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ItemAssessment of computational tools for the prediction of BVI noise( 2006) Loiodice, S. ; Kokkalis, A. ; Drikakis, D. ; Perez, G. ; Gennaretti, M. ; Ponza, R. ; Hounjet, M. ; Brouwer, H.
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ItemBenchmark for experimentation of acoustic transmission loss applied to helicopter trim panels( 2016) Wijntjes, R. ; Simon, F. ; Haase, T. ; Unruh, O. ; Tijs, E.