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| Active Noise Control of pipeline acoustic characteristics - Ⅱ The experimental part
81. (InChinese) l981.1astoftwo1 [MI. Shanghai: Shanghai 【6】 Woo, FEI Ren Yuan,moncler jacken, Da-Sen Zhou, et al. Dynamic feedback neural network based active noise control system piping acoustic channel identification [J】. Mechanical Engineering,ugg boots günstig, 2002,38 (2): 100.103. WUBin, FEIRen-yuan, ZHOUDa-sen,mbt schuhe, eta1. Identificationforacousticalpathsoftheactivenoisecontrolsysteminductsusingmofionalfeedbackloudspeakerbasedonneuralnetworks [J]. ChineseJournalMechanicalEngineering, 2002,38 (2) :100-103. (InChinese) StudyonAcousticCharacterofActiveNoiseAttenuationinDucts Ⅱ ExperimentWUBin, FEIRen. yuan2, ZHOUDa. sen (1.CollegeofEnvironmentandEnergyEngineering,ugg boots billig, BeijingUniversityofTechnology, BeOing100022, China; 2.CollegeofMechanicalEngineeringandAppliedElectronicsTechnology, BeijingUniversityofTechnology, BeOing100022,nike air max, China) Abstract: InordertoveilfytheacousticcheLracterofthestandingwavefieldbetweenthenoisesourceandthesecondarysourceinductsunderthecontroloftheactivenoiseattenuationsystem, theauthorsmadethesinglefrequencynoisecancellationexperimentinlowfrequencybands0ntheadaptiveactivenoisecontrolexperimentalsystemdesignedbytheirown. Afterachievingthemaximumnoisecancellationresultateachfrequencypoint, theductacousticcharactersunderthecontroloftheactivenoiseattenuationsystemalemeasuredandanalyzedbythestandingwaveseparationmethod. 1] heexperimentalresultsshowthatthereflectioncoefficienfSmoduleofstandingwavefieldbetweenthenoiseSOUl'CeandthesecondarysourceisclosetolWhilereachingthemaximumnoisecancellationeffect, i. e. , Mostofsoundenergytransmittedfromtheadvancedofductsisreflectedback. Keywords: activenoiseattenuation; standingwaveseparationmethod; adaptivecontrol; standingwavefield More articles related to topics： UGGs bestellen Catalytic synthesis of TBHQ _2560 moncler jacken Statically accelerated experimental north face outlet Fire cable insulation tape _3862 |
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