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Principles of Tribology , 2nd Edition 摩擦學原理(第2版) pdf epub mobi txt 電子書 下載 2024
本書匯集摩擦學研究進展以及作者和同事們從事該領域研究的成果,係統地闡述摩擦學的基本原理與應用,全麵反映現代摩擦學的研究狀況和發展趨勢。
全書共21章,由潤滑理論與潤滑設計、摩擦磨損機理與控製、應用摩擦學等三部分組成。除摩擦學傳統內容外,還論述瞭摩擦學與相關學科交叉而形成的研究領域。本書針對工程實際中各種摩擦學現象,著重闡述在摩擦過程中的變化規律和特徵,進而介紹基本理論和分析計算方法以及實驗測試技術,並說明它們在工程中的實際應用。
本書可作為機械設計與理論專業的研究生教材和高等院校機械工程各類專業師生的教學參考書,亦可供從事機械設計和研究的工程技術人員參考。
本書匯集摩擦學研究的*新進展及作者和其同事從事該領域的研究成果,係統地闡述摩擦學的基本原理與應用,全麵反映現代摩擦學的研究狀況和發展趨勢。
全書共21章,由潤滑理論與潤滑設計、摩擦磨損機理與控製、應用摩擦學等3部分組成。除摩擦學傳統內容外,還論述瞭摩擦學與相關學科交叉而形成的研究領域。本書針對工程實際中的各種摩擦學現象,著重闡述摩擦過程中的變化規律和特徵,進而介紹基本理論、分析計算方法以及實驗測試技術,並說明它們在工程中的實際應用。
本書可作為機械設計與理論專業的研究生教材以及高等院校機械工程各類專業師生的教學參考書,也可以供從事機械設計和研究的工程技術人員參考。
溫詩鑄 清華大學精密儀器與機械學係教授。1932年生於江西省豐城市。1955年畢業於清華大學機械製造係後留校任教,曆任機械設計教研室主任、摩擦學研究室主任、摩擦學國傢重點實驗室主任。長期從事機械設計與理論專業的教學和研究,齣版《摩擦學原理》(第1、2、3版)、《耐磨損設計》、《彈性流體動力潤滑》、《納米摩擦學》、《界麵科學與技術》、《Principles of Tribology》等6部著作,發錶學術論文500餘篇。獲國傢自然科學奬二等奬、國傢技術發明奬三等奬、全國優秀科技圖書奬一、二等奬以及省部級科技進步奬等共19項。1999年被選為中國科學院院士。
Contents
AbouttheAuthorsxvii
SecondEditionPrefacexix
Prefacexxi
Introductionxxiii
PartILubricationTheory1
1PropertiesofLubricants3
1.1LubricationStates3
1.2DensityofLubricant5
1.3ViscosityofLubricant7
1.3.1DynamicViscosityandKinematicViscosity7
1.3.1.1DynamicViscosity7
1.3.1.2KinematicViscosity8
1.3.2RelationshipbetweenViscosityandTemperature9
1.3.2.1Viscosity–TemperatureEquations9
1.3.2.2ASTMViscosity–TemperatureDiagram9
1.3.2.3ViscosityIndex10
1.3.3RelationshipbetweenViscosityandPressure10
1.3.3.1RelationshipsbetweenViscosity,TemperatureandPressure11
1.4Non-NewtonianBehaviors12
1.4.1Ree–EyringConstitutiveEquation12
1.4.2Visco-PlasticConstitutiveEquation13
1.4.3CircularConstitutiveEquation13
1.4.4Temperature-DependentConstitutiveEquation13
1.4.5Visco-ElasticConstitutiveEquation14
1.4.6NonlinearVisco-ElasticConstitutiveEquation14
1.4.7ASimpleVisco-ElasticConstitutiveEquation15
1.4.7.1Pseudoplasticity16
1.4.7.2Thixotropy16
1.5WettabilityofLubricants16
1.5.1WettingandContactAngle17
1.5.2SurfaceTension17
1.6MeasurementandConversionofViscosity19
1.6.1RotaryViscometer19
1.6.2Off-BodyViscometer19
1.6.3CapillaryViscometer19
References21
2BasicTheoriesofHydrodynamicLubrication22
2.1ReynoldsEquation22
2.1.1BasicAssumptions22
2.1.2DerivationoftheReynoldsEquation23
2.1.2.1ForceBalance23
2.1.2.2GeneralReynoldsEquation25
2.2HydrodynamicLubrication26
2.2.1MechanismofHydrodynamicLubrication26
2.2.2BoundaryConditionsandInitialConditionsoftheReynoldsEquation27
2.2.2.1BoundaryConditions27
2.2.2.2InitialConditions28
2.2.3CalculationofHydrodynamicLubrication28
2.2.3.1Load-CarryingCapacityW28
2.2.3.2FrictionForceF28
2.2.3.3LubricantFlowQ29
2.3ElasticContactProblems29
2.3.1LineContact29
2.3.1.1GeometryandElasticitySimulations29
2.3.1.2ContactAreaandStress30
2.3.2PointContact31
2.3.2.1GeometricRelationship31
2.3.2.2ContactAreaandStress32
2.4EntranceAnalysisofEHL34
2.4.1ElasticDeformationofLineContacts35
2.4.2ReynoldsEquationConsideringtheEffectofPressure-Viscosity35
2.4.3Discussion36
2.4.4GrubinFilmThicknessFormula37
2.5GreaseLubrication38
References40
3NumericalMethodsofLubricationCalculation41
3.1NumericalMethodsofLubrication42
3.1.1FiniteDifferenceMethod42
3.1.1.1HydrostaticLubrication44
3.1.1.2HydrodynamicLubrication44
3.1.2FiniteElementMethodandBoundaryElementMethod48
3.1.2.1FiniteElementMethod(FEM)48
3.1.2.2BoundaryElementMethod49
3.1.3NumericalTechniques51
3.1.3.1ParameterTransformation51
3.1.3.2NumericalIntegration51
3.1.3.3EmpiricalFormula53
3.1.3.4SuddenThicknessChange53
3.2NumericalSolutionoftheEnergyEquation54
3.2.1ConductionandConvectionofHeat55
3.2.1.1ConductionHeatHd55
3.2.1.2ConvectionHeatHv55
3.2.2EnergyEquation56
3.2.3NumericalSolutionofEnergyEquation59
3.3NumericalSolutionofElastohydrodynamicLubrication60
3.3.1EHLNumericalSolutionofLineContacts60
3.3.1.1BasicEquations60
3.3.1.2SolutionoftheReynoldsEquation62
3.3.1.3CalculationofElasticDeformation62
3.3.1.4Dowson–HigginsonFilmThicknessFormulaofLineContactEHL64
3.3.2EHLNumericalSolutionofPointContacts64
3.3.2.1TheReynoldsEquation65
3.3.2.2ElasticDeformationEquation66
3.3.2.3Hamrock–DowsonFilmThicknessFormulaofPointContactEHL66
3.4Multi-GridMethodforSolvingEHLProblems68
3.4.1BasicPrinciplesofMulti-GridMethod68
3.4.1.1GridStructure68
3.4.1.2DiscreteEquation68
3.4.1.3Transformation69
3.4.2NonlinearFullApproximationSchemefortheMulti-GridMethod69
3.4.3VandWIterations71
3.4.4Multi-GridSolutionofEHLProblems71
3.4.4.1IterationMethods71
3.4.4.2IterativeDivision72
3.4.4.3RelaxationFactors73
3.4.4.4NumbersofIterationTimes73
3.4.5Multi-GridIntegrationMethod73
3.4.5.1TransferPressureDownwards74
3.4.5.2TransferIntegralCoefficientsDownwards74
3.4.5.3IntegrationontheCoarserMesh74
3.4.5.4TransferBackIntegrationResults75
3.4.5.5ModificationontheFinerMesh75
References76
4LubricationDesignofTypicalMechanicalElements78
4.1SliderandThrustBearings78
4.1.1BasicEquations78
4.1.1.1ReynoldsEquation78
4.1.1.2BoundaryConditions78
4.1.1.3ContinuousConditions79
4.1.2SolutionsofSliderLubrication79
4.2JournalBearings81
4.2.1AxisPositionandClearanceShape81
4.2.2InfinitelyNarrowBearings82
4.2.2.1Load-CarryingCapacity83
4.2.2.2DeviationAngleandAxisTrack83
4.2.2.3Flow84
4.2.2.4FrictionalForceandFrictionCoefficient84
4.2.3InfinitelyWideBearings85
4.3HydrostaticBearings88
4.3.1HydrostaticThrustPlate89
4.3.2HydrostaticJournalBearings90
4.3.3BearingStiffnessandThrottle90
4.3.3.1ConstantFlowPump91
4.3.3.2CapillaryThrottle91
4.3.3.3Thin-WalledOrificeThrottle92
4.4SqueezeBearings92
4.4.1RectangularPlateSqueeze93
4.4.2DiscSqueeze94
4.4.3JournalBearingSqueeze94
4.5DynamicBearings96
4.5.1ReynoldsEquationofDynamicJournalBearings96
4.5.2SimpleDynamicBearingCalculation98
4.5.2.1ASuddenLoad98
4.5.2.2RotatingLoad99
4.5.3GeneralDynamicBearings100
4.5.3.1InfinitelyNarrowBearings100
4.5.3.2SuperimpositionMethodofPressures101
4.5.3.3SuperimpositionMethodofCarryingLoads101
4.6GasLubricationBearings102
4.6.1BasicEquationsofGasLubrication102
4.6.2TypesofGasLubricationBearings103
4.7RollingContactBearings106
4.7.1EquivalentRadiusR107
4.7.2AverageVelocityU107
4.7.3CarryingLoadPerWidthW/b107
4.8GearLubrication108
4.8.1InvoluteGearTransmission109
4.8.1.1EquivalentCurvatureRadiusR110
4.8.1.2AverageVelocityU111
4.8.1.3LoadPerWidthW/b112
4.8.2ArcGearTransmissionEHL112
4.9CamLubrication114
References116
5SpecialFluidMediumLubrication118
5.1MagneticHydrodynamicLubrication118
5.1.1CompositionandClassificationofMagneticFluids118
5.1.2PropertiesofMagneticFluids119
5.1.2.1DensityofMagneticFluids119
5.1.2.2ViscosityofMagneticFluids119
5.1.2.3MagnetizationStrengthofMagneticFluids120
5.1.2.4StabilityofMagneticFluids120
5.1.3BasicEquationsofMagneticHydrodynamicLubrication121
5.1.4InfluenceFactorsonMagneticEHL123
5.2Micro-PolarHydrodynamicLubrication124
5.2.1BasicEquationsofMicro-PolarFluidLubrication124
5.2.1.1BasicEquationsofMicro-PolarFluidMechanics124
5.2.1.2ReynoldsEquationofMicro-PolarFluid125
5.2.2InfluenceFactorsonMicro-PolarFluidLubrication128
5.2.2.1InfluenceofLoad128
5.2.2.2MainInfluenceParametersofMicro-PolarFluid129
5.3LiquidCrystalLubrication130
5.3.1TypesofLiquidCrystal130
5.3.1.1TribologicalPropertiesofLyotropicLiquidCrystal131
5.3.1.2TribologicalPropertiesofThermotropicLiquidCrystal131
5.3.2DeformationAnalysisofLiquidCrystalLubrication132
5.3.3FrictionMechanismofLiquidCrystalasaLubricantAdditive136
5.3.3.1TribologicalMechanismof4-pentyl-4′-cyanobiphenyl136
5.3.3.2TribologicalMechanismofCholesterylOleylCarbonate136
5.4ElectricDoubleLayerEffectinWaterLubrication137
5.4.1ElectricDoubleLayerHydrodynamicLubricationTheory138
5.4.1.1ElectricDoubleLayerStructure138
5.4.1.2HydrodynamicLubricationTheoryofElectricDoubleLayer138
5.4.2InfluenceofElectricDoubleLayeronLubricationProperties142
5.4.2.1PressureDistribution142
5.4.2.2Load-CarryingCapacity143
5.4.2.3FrictionCoefficient144
5.4.2.4AnExample144
R Principles of Tribology , 2nd Edition 摩擦學原理(第2版) 下載 mobi epub pdf txt 電子書
Principles of Tribology , 2nd Edition 摩擦學原理(第2版) pdf epub mobi txt 電子書 下載