 |
| lojmikak |
 Wysłany: Sob 22:38, 07 Maj 2011 Temat postu: oakley norge Distinguish between the sound of the |
|
Distinguish between the sound of the air mass
struetur ~ borneNoiseinaG0hera1AviationAircFaft, NASACR a 159,Christian Louboutin,099 . Aug. , 1979:2] Lois, A ... RMcgary, M. C. : StudiesofTransmissioninAdvancedCornpositeMateria1Structures, ACEECompositeStructureConference, 1984 [3] Beranek, LLNoiseandVibrationContro1. McGraw-Hill, Inc. [4] Fahy,oakley norge, F ... JSoundandStructuralibration, AcademicPresslnc. [53GadeSSoandIntensity (Theory) andSoundIntensity (InstrumentatlonandApp1icati0ns), accounting & KTechnicalReviews,Abercrombie and Fitch, No. 3andNo. 4,1982 [8] Bockboff, M. : SomeRemarksontheContinuousSweepingMethodinSoundPowerDetermlnation,ed hardy danmark, ProceedingsofINTER-NoIsE, 1984StudyonSeparatingAirborneandStructureborneNoisesHuZhangweiYinJianping (NanjingAeronauticalInstitute) bstractItisimportanttoknowthepredomlnantsourc0COntributedtothecabinnoiseinredutingthenoisein. theaircraft, 5othatthereasonableandeffectienoisecontroltreatmentcanbeused. Thenoiseenteringthecabincftheaircraftismain1Ydividedintotwomajorcategoties, viz, airborneexcitingnoiseandmechanicexcitingnoise. Thefofreeriscalledairhornenoiseforthecoatrihutiontothecabinnseandthelatterstructnrebornenoise. Theformulaeforseparatingthemafederivedusingtwomicropboneaconsticintensitymethodinthetwotypesofexcitati0nintermsofthedifferenceintheairborneandstTucturebofnenoiseradlationefficienciesfortheaircraftfuselage. Theexperimentsseparatingtheairbornenoiseandstruetu-rebornenoiseareperformedusingtbeseformulaeonauniformplateandari'bbedplateseparately. Theagreementbeteenthepredictedandtheexperimenta1resuhsisfairlygood. keywordsIairbornenoise,imagenes ed hardy, structurebornenoise, cabinnoise, separating. soundintensitymethod
相关的主题文章：
oakley brasil Package testing equipment to improve
Oakley juliet Packaging of high- _5340
Abercrombie Fitch uk Packaging and decoration prin |
|
|
|
|
|