A study on calculation method for mechanicaimpedance of air springl机械计算方法地研究 空气弹簧阻抗.pdf

A study on calculation method for mechanicaimpedance of air springl机械计算方法地研究 空气弹簧阻抗.pdf

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时间:2020-03-27

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1、JournalofPhysics:ConferenceSeriesPAPER•OPENACCESSRelatedcontent-ANovelMeasurementforMonitoringAstudyoncalculationmethodformechanicalMechanicalImpedanceAppliedtoBreakthroughDetectionofBone-DrillimpedanceofairspringSystemPJKoandMCTsai-ADummyLoadforPerformanceTe

2、stofTocitethisarticle:SHUAIChanggengetal2016J.Phys.:Conf.Ser.744012181SonarTransducerHaruhisaIida,MinoruKurosawa,SadayukiUehaetal.-MechanicalImpedanceModelingofHumanArm:AsurveyViewthearticleonlineforupdatesandenhancements.AAhmadPuzi,SNSidekandFSadoThiscontent

3、wasdownloadedfromIPaddress117.165.40.53on04/09/2018at07:39MOVIC2016&RASD2016IOPPublishingJournalofPhysics:ConferenceSeries744(2016)012181doi:10.1088/1742-6596/744/1/012181Astudyoncalculationmethodformechanicalimpedanceofairspring1,2,41,2,53,6SHUAIChanggeng,LI

4、PenghuiandEmilianoRustighi1InstituteofNoiseandVibration,NavalUniversityofEngineering,Wuhan430033,P.R.China2NationalKeyLaboratoryonShipVibrationandNoise,Wuhan430033,P.R.China3InstituteofSoundandVibrationResearch,UniversityofSouthampton,UK456Email:chgshuai@163.

5、com;lph0115@163.com;er@isvr.soton.ac.ukAbstract.Thispaperproposesanapproximateanalyticmethodofobtainingthemechanicalimpedanceofairspring.Thesoundpressuredistributionincylindricalairspringiscalculatedbasedonthelinearairwavetheory.Theinfluencesofdifferentbounda

6、ryconditionsontheacousticpressurefielddistributionincylindricalairspringareanalysed.A1-orderordinarydifferentialmatrixequationforthestatevectorofrevolutionaryshellsunderinternalpressureisderivedbasedonthenon-momenttheoryofelasticthinshell.Referringtothetransf

7、ermatrixmethod,akindofexpandedhomogeneouscapacityhighprecisionintegrationmethodisintroducedtosolvethenon-homogeneousmatrixdifferentialequation.Combinedthesolvedstressfieldofshellwiththecalculatedsoundpressurefieldinairspringunderthedisplacementharmonicexcitat

8、ion,theapproximateanalyticalexpressionoftheinputandtransfermechanicalimpedancefortheairspringcanbeachieved.ThenumericalsimulationwiththeComsolMultiphysicssoftwareverifiesthecorrectnessoft

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