Print Email Facebook Twitter Acoustic Array Design Title Acoustic Array Design: The design of a reconfigurable phased microphone array for aeroacoustic wind tunnel measurements Author Vlemmix, Christian (TU Delft Aerospace Engineering) Contributor Snellen, Mirjam (mentor) Degree granting institution Delft University of Technology Programme Aerospace Engineering | Aerodynamics and Wind Energy Date 2017-12-05 Abstract Since both the aircraft and wind energy sectors are experiencing rapid growth, improvements must be made in terms of noise reduction as to enable growth whilst fulfilling the restrictions on noise pollution. An open-section vertical wind tunnel with an anechoic test chamber has recently been constructed at the Delft University of Technology, in part to facilitate research into this subject.The purpose of this thesis project is the design, creation, testing and evaluation of a reconfigurable phased microphone array for this wind tunnel. Tests were performed with a calibrated sound source, and using conventional (delay-and-sum) beamforming, CLEAN-PSF and CLEAN-SC, performance was assessed in terms of sound power level and sound source location estimation.The result of this iterative process is a practical, reconfigurable phased microphone array for acoustic analysis using beamforming, which is calibrated in third octave bands between 500 and 5000 Hz. Subject acousticnoisearraymicrophonephasedwindtunnelexperimentaeroacousticsoundbeamformingCLEAN-PSFCLEAN-SCcalibration To reference this document use: http://resolver.tudelft.nl/uuid:db51ea64-71b1-446d-9022-61842f2e794a Part of collection Student theses Document type master thesis Rights © 2017 Christian Vlemmix Files PDF Final_Thesis_Report_21_11 ... 157095.pdf 51.37 MB Close viewer /islandora/object/uuid:db51ea64-71b1-446d-9022-61842f2e794a/datastream/OBJ/view