F-35 Acoustics Based on Edwards AFB Acoustics Test.ppt


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municationsRelease JSFProgramOffice&LockheedMartin Subject:F-35AcousticsBasedonEdwardsAFBAcousticsTest Date:April2009摇罪责髓竖适腔截该萎智景榷妄膊牛灿弦堑天供舷望昼寐浊簇刺深横淬掏F-35AcousticsBasedonEdwardsAFBAcousticsTestF-35AcousticsBasedonEdwardsAFBAcousticsTestF-35AcousticsTesting: urateacousticprofileevergeneratedforamilitaryaircraftPreliminaryconclusionsbasedonextensiveanalysisofacousticstestdatacollectedOctober2008atEdwardsAFBonF-35AOver170microphonesusedtoobtainacousticdataMaintenanceandoperationspersonnelacoustics(munityacoustics(FarField)LargearrayofmeasurementsFrom0to300ftabovegroundFrom25ftto7mileslaterallyMulti-nationalcooperativetestDirectedbyAFRL–,butinitialanalysis&validationshowsF-parabletocurrentaircraft卧称磁硬茹携片沂黔绩逛封题施拄乎裕摹兔丸炎必扰蹲腺催膘坤酒松挽搞F-35AcousticsBasedonEdwardsAFBAcousticsTestF-35AcousticsBasedonEdwardsAFBAcousticsTestF-35AcousticsTesting: ResultsMaintenanceandOperationsPersonnelAcoustics(NearField)parabletotheF-22,F-18E/F,andF-16withanF-100-PW-parabletoanF-15CwithF-100-PW-munityAcoustics(FarField)TheF-parabletotheacousticsofothercurrentgenerationaircraftExamplesincludeF-22AandF-18E/FAcousticlevelsexperiencedbythepublicdependonanumberofconditionsObserverlocationinrelationtoaircraftFlightprofiles(Aircraftconfiguration,aerodynamics,powersettings,approach&departureprofiles,andairspeed)Weather:Temperature,Humidity,WindAirfieldacoustics:Reflectivestructures,vegetationandterraininandaroundairfieldTimeofdayTotalnumberofflightoperationsperyear刘褂丘硕恐罐速忱脓幻呜耀任柿丝哎究碘帝柞怎禾歧剧剂余酿振爆袁仿脓F-35AcousticsBasedonEdwardsAFBAcousticsTestF-35AcousticsBasedonEdwardsAFBAcousticsTestF-35AcousticsTesting: AcousticsBackgroundQuestionsWhydoestheMaintenanceandOperationsPersonnelAcoustics(NearField)munityAcoustics(FarField)chart?TheMaintenanceandOperationsPersonnelAcoustics(nearfield)chartrelatessoundlevel(indB)becausethisisthemostappropriatemeasureofthesteady,munityAcoustics(farfield)chartr

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