Chapter4ANSYS結構分析的基本觀念BasicConceptsforANSYSStructuralAnalysis
Contents4.1學科領域與元素類別 DisciplinesandElementTypes4.2分析類別 AnalysisTypes4.3線性分析與非線性分析 LinearAnalysisandNonlinearAnalysis4.4材料模式 MaterialModels4.5材料的破壞準則 FailureCriteriaofMaterials4.6實例:動態分析 Example:DynamicAnalysis4.7實例:非線性分析 Example:NonlinearAnalysis4.8練習題:幾何非線性 Exercise:GeometricNonlinearity2
第4.1節學科領域與元素類別DisciplinesandElementTypes3
4.1.1學科領域結構分析 StructuralAnalysis熱傳分析 ThermalAnalysis流場分析 FluidDynamicAnalysis電場分析 ElectricFieldAnalysis磁場分析 MagneticFieldAnalysis耦合場分析 Coupled-fieldAnalysis4
4.1.2耦合場分析Example1:ThermalStressAnalysisExample2:Structure-FluidInteractionsExample3:ThermalActuator5
4.1.3元素類別
ElementTypesANSYSelementsareclassifiedaccordingtoDisciplineDimensionalityGeometryOrderExampleSOLID45:3DhexahedrallinearstructuralelementPLANE67:2Dquadralaterallinearcoupledthermal-electricelement6
第4.2節分析類別AnalysisTypes7
4.2.1分析類別
AnalysisTypesStaticAnalysisDynamicAnalysisTransientAnalysisModalAnalysisHarmonicResponseAnalysisetc.BucklingAnalysisStructuralAnalysisStatic,Transient,Modal,Harmonic,Buckling,etc.ThermalAnalysisSteady-state,TransientElectricFieldAnalysisStatic,Transient,Modal,Harmonicetc.8
4.2.2暫態分析
TransientAnalysisInertiaforcesDampingforcesElasticforcesExternalforces9
4.2.3靜態分析
StaticAnalysisWhendynamiceffectscanbeneglected,aproblemcanbesolvedstatically.Dynamiceffectscanbeneglectedonlywhenthedeformationvelocityandaccelerationaresmall.Twocases:Steady-statesolutionapproximationsolutionforareal-worldproblem.10
4.2.4模態分析
ModalAnalysisModalanalysisistoanalysisastructureunderfreevibration.ThesolutionstypicallyincludeVibrationfrequencies(orperiods)Vibrationmodes11
4.2.5諧和反應分析
HarmonicResponseAnalysisHarmonicresponseanalysisistoanalysisastructureunderperiodicexcitationofexternalforces.Thesolutionstypicallyincludemaximum