logoxgvb
Joined: 30 Aug 2010
Posts: 1580
Read: 0 topics
Warns: 0/5
Location: hdfttv
|
 Posted: Sat 22:47, 07 May 2011 Post subject: hollister Distinguish between the sound of the air |
|
|
,[link widoczny dla zalogowanych]
Distinguish between the sound of the air mass
struetur ~ borneNoiseinaG0hera1AviationAircFaft, NASACR a 159,099 . Aug. , 1979:2] Lois, A ... RMcgary, M. C. : StudiesofTransmissioninAdvancedCornpositeMateria1Structures, ACEECompositeStructureConference,[link widoczny dla zalogowanych], 1984 [3] Beranek,[link widoczny dla zalogowanych], LLNoiseandVibrationContro1. McGraw-Hill, Inc. [4] Fahy, F ... JSoundandStructuralibration, AcademicPresslnc. [53GadeSSoandIntensity (Theory) andSoundIntensity (InstrumentatlonandApp1icati0ns), accounting & KTechnicalReviews, No. 3andNo. 4,1982 [8] Bockboff, M. : SomeRemarksontheContinuousSweepingMethodinSoundPowerDetermlnation, ProceedingsofINTER-NoIsE,[link widoczny dla zalogowanych], 1984StudyonSeparatingAirborneandStructureborneNoisesHuZhangweiYinJianping (NanjingAeronauticalInstitute) bstractItisimportanttoknowthepredomlnantsourc0COntributedtothecabinnoiseinredutingthenoisein. theaircraft, 5othatthereasonableandeffectienoisecontroltreatmentcanbeused. Thenoiseenteringthecabincftheaircraftismain1Ydividedintotwomajorcategoties, viz, airborneexcitingnoiseandmechanicexcitingnoise. Thefofreeriscalledairhornenoiseforthecoatrihutiontothecabinnseandthelatterstructnrebornenoise. Theformulaeforseparatingthemafederivedusingtwomicropboneaconsticintensitymethodinthetwotypesofexcitati0nintermsofthedifferenceintheairborneandstTucturebofnenoiseradlationefficienciesfortheaircraftfuselage. Theexperimentsseparatingtheairbornenoiseandstruetu-rebornenoiseareperformedusingtbeseformulaeonauniformplateandari'bbedplateseparately. Theagreementbeteenthepredictedandtheexperimenta1resuhsisfairlygood. keywordsIairbornenoise,[link widoczny dla zalogowanych], structurebornenoise, cabinnoise, separating. soundintensitymethod
相关的主题文章：
tory burch outlet Packaging and decoration printin
oakley solbriller Beijing mechanic successful intr
[link widoczny dla zalogowanych]
The post has been approved 0 times
|
|
