 Wysłany: Sob 22:46, 07 Maj 2011 Temat postu: ed hardy bikinit Distinguish between the sound of |
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| Distinguish between the sound of the air mass
struetur ~ borneNoiseinaG0hera1AviationAircFaft, NASACR a 159,099 . Aug. , 1979:2] Lois, A ... RMcgary, M. C. : StudiesofTransmissioninAdvancedCornpositeMateria1Structures, ACEECompositeStructureConference,abercrombie en fitch, 1984 [3] Beranek, LLNoiseandVibrationContro1. McGraw-Hill, Inc. [4] Fahy,ed hardy bikinit, F ... JSoundandStructuralibration, AcademicPresslnc. [53GadeSSoandIntensity (Theory) andSoundIntensity (InstrumentatlonandApp1icati0ns), accounting & KTechnicalReviews, No. 3andNo. 4,1982 [8] Bockboff,oakley norge, M. : SomeRemarksontheContinuousSweepingMethodinSoundPowerDetermlnation, ProceedingsofINTER-NoIsE, 1984StudyonSeparatingAirborneandStructureborneNoisesHuZhangweiYinJianping (NanjingAeronauticalInstitute) bstractItisimportanttoknowthepredomlnantsourc0COntributedtothecabinnoiseinredutingthenoisein. theaircraft, 5othatthereasonableandeffectienoisecontroltreatmentcanbeused. Thenoiseenteringthecabincftheaircraftismain1Ydividedintotwomajorcategoties,Franklin Marshall pas cher, viz,Abercrombie France, airborneexcitingnoiseandmechanicexcitingnoise. Thefofreeriscalledairhornenoiseforthecoatrihutiontothecabinnseandthelatterstructnrebornenoise. Theformulaeforseparatingthemafederivedusingtwomicropboneaconsticintensitymethodinthetwotypesofexcitati0nintermsofthedifferenceintheairborneandstTucturebofnenoiseradlationefficienciesfortheaircraftfuselage. Theexperimentsseparatingtheairbornenoiseandstruetu-rebornenoiseareperformedusingtbeseformulaeonauniformplateandari'bbedplateseparately. Theagreementbeteenthepredictedandtheexperimenta1resuhsisfairlygood. keywordsIairbornenoise, structurebornenoise, cabinnoise, separating. soundintensitymethod 相关的主题文章： All in Print China 2008 debut drupa _2488 abercrombie günstig South China Packaging Technology Exhibition 2003 in South C Ed Hardy mexico South City - a new platform for Ch |
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