机械振动噪声与控制

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1、FundamentalsofMechanicalVibrationandNoisePro.柳贡民办公地点:三甲动力装置工程技术研究所Email:liugongmin@hrbeu.edu.cnTel:82569458,82569468,15904609301教科书（Textbook）:赵玫等，机械振动与噪声学，科学出版社，2004参考书（ReferenceBooks）:W.T.ThomsonandM.D.Dahleh,TheoryofVibrationswithApplications(5thed.),PrenticeHall,199

2、72.•R.F.Barron,IndustrialNoiseControlandAcoustics,MarcelDekker,2003•郑兆昌主编，机械振动（上册），机械工业出版社，1980•商大中，动力分析基础，哈尔滨工程大学出版社，1999•季文美，机械振动，科学出版社，19851.1MechanicalVibrationandControlChapter1Introduction1.1.1SummaryofMechanicalVibrationVibratingPhenomenaintheWorldVibrationarefo

3、undinmanybranchesofscienceandengineering1.1MechanicalVibrationandControlChapter1Introduction1.1.1SummaryofMechanicalVibrationUndesirablevibrations：Vehicle;Noise;Machines&Structures;Earthquake;PowerunitsineverykindsofvesselsmaycausevibrationsUsefulvibrations：Stringvibra

4、tion;harmonicoscillator,resonator;Vibratingroadroller;Vibratingfeeder;Vibratingformingmachine.1.1MechanicalVibrationandControlChapter1Introduction1.1.1SummaryofMechanicalVibration1.1MechanicalVibrationandControlChapter1Introduction1.1.2BasicConceptMechanicalVibration?R

5、esearchaim?Vibrationisaphenomenathatabodyorstructureoscillatesaboutsomespecifiedreferencepoint.Vibrationiscommonlyexpressedintermsoffrequency,amplitudeandPhaseangle.1.Eliminationorsuppressionofundesirablevibrations2.Generationofthenecessaryformsandquantitiesofusefulvib

6、rations1.1MechanicalVibrationandControlChapter1Introduction1.1.3ModelofVibrationSystem离散系统（集中参数系统）Discretesystem(Lumpedparametersystem)连续系统（分布参数系统）Continuoussystem(Distributedparametersystem)1.1MechanicalVibrationandControlChapter1Introduction1.1.4ClarificationofMechan

7、icalVibrations(1)按自由度分(Accordingtothedegreeoffreedom)Theleastnumberofmutuallyindependentparameters(coordinates)requiredtouniquelydefineamaterialsystem'spositioninspace,time,etc单自由度系统振动(singledegreeoffreedom)多自由度系统振动(multipledegreeoffreedom)连续系统振动(continuoussystem)Chapt

8、er1Introductionθθz单自由度系统振动(singledegreeoffreedom)多自由度系统振动(multipledegreeoffreedom)ABABChapter1Introduction模型与自由度(Mode