振声学主要研究典型结构在各种激励下的振动响应、振动传递以及声辐射的一般性规律。AndersC。Nilsson编著的《Vibro-Acoustics(VolumeⅠ)》首先回顾了单自由度系统和频域分析,接着重点讨论了固体中的波传播、纵波和横波的耦合关系、结构阻尼和结构连接引起的波衰减、以及梁和板的弯曲振动等,在此基础上讨论了变分分析、弹性支撑、流体介质中的波、声振耦合以及能量分析方法等内容。
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书名 | Vibro-Acoustics(VolumeⅠ) |
分类 | 科学技术-自然科学-物理 |
作者 | Anders C.Nilsson//Bilong Liu |
出版社 | 科学出版社 |
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简介 | 编辑推荐 振声学主要研究典型结构在各种激励下的振动响应、振动传递以及声辐射的一般性规律。AndersC。Nilsson编著的《Vibro-Acoustics(VolumeⅠ)》首先回顾了单自由度系统和频域分析,接着重点讨论了固体中的波传播、纵波和横波的耦合关系、结构阻尼和结构连接引起的波衰减、以及梁和板的弯曲振动等,在此基础上讨论了变分分析、弹性支撑、流体介质中的波、声振耦合以及能量分析方法等内容。 目录 Preface Notations Chapter 1 MECHANICALSYSTEMSWITHONEDEGREEOFFREEDOM 1.1 Asimplemass-springsystem 1.2 Freevibrations 1.3 Transientvibrations 1.4 Forcedharmonicvibrations 1.5 Fourierseries 1.6 Complexnotation Problems Chapter 2 FREQUENCYDOMAIN 2.1 Introduction 2.2 Frequencyresponse 2.3 Correlationfunctions 2.4 Spectraldensity 2.5 Examplesofspectraldensity 2.6 Coherence 2.7 Timeaveragesofpowerandenergy 2.8 Frequencyresponseandpointmobilityfunctions 2.9 Lossfactor 2.1 0Responseofa1-DOFsystem,asummary Problems Chapter 3 WAVESINSOLIDS 3.1 Stressesandstrains 3.2 Lossesinsolids 3.3 Transversewaves 3.4 Longitudinalwaves 3.5 Torsionalwaves 3.6 Wavesonastring 3.7 Bendingorflexuralwaves-beams 3.8 Wavesonstringsandbeams-acomparison 3.9 Flexuralwaves-plates 3.10 Orthotropicplates 3.11 Energyflow Problems Chapter 4 INTERACTIONBETWEENLONGITUDINALANDTRANSVERSEWAVES 4.1 Generalisedwaveequation 4.2 Intensity 4.3 Couplingbetweenlongitudinalandtransversewaves 4.4 Bendingofthickbeams/plates 4.5 Quasilongitudinalwavesinthickplates 4.6 Rayleighwaves 4.7 Sandwichplates-general 4.8 Bendingofsandwichplates 4.9 Equationsgoverningbendingofsandwichplates 4.1 0Wavenumbersofsandwichplates 4.1 1Bendingstiffnessofsandwichplates 4.1 2BendingofI-beams Problems Chapter 5 WAVEATTENUATIONDUETOLOSSESANDTRANSMISSIONACROSSJUNCTIONS 5.1 ExcitationandpropagationofL-waves 5.2 ExcitationandpropagationofF-waves 5.3 Pointexcitedinfiniteplate 5.4 SpatialFouriertransforms 5.5 Addeddamping 5.6 Lossesinsandwichplates 5.7 Couplingbetweenflexuralandinplanewaves 5.8 TransmissionofF-wavesacrossjunctions,diffuseincidence 5.9 TransmissionofF-wavesacrossjunctions,normalincidence 5.1 0Atenuationduetochangeofcrosssection 5.1 1Someothermethodstoincreaseattenuation 5.1 2Velocityleveldifferencesandtransmissionlosses 5.1 3Measurementsonjunctionsbetweenbeams Problems Chapter 6 LONGITUDINALVIBRATIONSOFFINITEBEAMS 6.1 Freelongitudinalvibrationsinfinitebeams 6.2 Forcedlongitudinalvibrationsinfinitebeams 6.3 Themodesummationtechnique 6.4 Kineticenergyofvibratingbeam 6.5 Mobilities 6.6 Massmountedonarod 6.7 Transfermatrices Problems Chapter 7 FLEXURALVIBRATIONSOFFINITEBEAMS 7.1 Freeflexuralvibrationsofbeams 7.2 Orthogonalityandnormofeigenfunctions 7.3 ForcedexcitationofF-waves 7.4 Modesummationandmodalparameters 7.5 Pointmobilityandpower 7.6 Transfermatricesforbendingofbeams 7.7 Infiniteperiodicstructures 7.8 Forcedvibrationofperiodicstructures 7.9 Finitecompositebeam Problems Chapter 8 FLEXURALVIBRATIONSOFFINITEPLATES 8.1 Freevibrationsofsimplysupportedplates 8.2 Forcedresponseofasimplysupportedplate 8.3 Forcedexcitationofarectangularplatewithtwooppositesidessimplysupported 8.4 Powerandenergy 8.5 Mobilityofplates 8.6 TheRayleigh-Ritzmethod 8.7 ApplicationoftheRayleigh-Ritzmethod 8.8 Nonflatplates 8.9 Theeffectofanaddedmassormass-springsystemonplatevibrations 8.10 Smalldisturbances 8.11 Platesmountedonresilientlayers 8.12 Vibrationoforthotropicplates 8.13 Circularandhomogeneousplates 8.14 Bendingofplatesintension Problems References Index |
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