ANSYS模态分析实例和详细过程.docx

BxesANSYSIwV20"1617:25:26ModelMlyofunifor*1.2创建单元类型拾取菜单MainM-Preprocessor-EleeentTyl>e-AddEdil/Deleie,弹出对话框，单击"AdiT按钮:弹出对话框，在左侧列表中选择“SlrUCIUralSolid",在灯侧列表中选择“BriCk20node186",单击"OK"按钮:单击对话框的“Close"按钮.-IlSPreferencesPreprocessorBKleaentType TJEBTrtn5H11BHSwitchEleBType AddDOF KeaoveDOFs KlreTechControlBRealConstants(SIaterialProps向Sections(三IodelingBIeshlnsECheckingCtr)liNunberinRCtrlsEArchiveIodelECoupling/CeqnBIulti-fieldSetUP因1.oadslPhysics三PathOperations三Solution3GeneralPoetprocdlTiHistPostproSROiTool三DesicnXplorer三ProbDesiQRadiationOptBSessionEditorBFinish4. 3定义材料属性拾取菜单MainMenuPreprocessorMaterialPropsMaterialModeIS.弹出对话框,在右侧列表中依次双击"Structural","1.inear","Elastic",*Isotropic*",弹出对话框,在"EX”文本框中输入2ell（弹性模量）.在"PRXY"文木框中输入0.3（泊松比）.单击"0K”按钮:再双击右傅列表中“Slruciural"下"Dcnsily",弹出时活椎，在"DENS.文本框中输入7800（密度）,单击"0K”¾钮.然后对话框.PreferenceiaBPreproceMeor三KleacntTyC三KealConKtMntnDKlvctrowUnitsBCoavertA1.PiInterinlPropsIatcrial1.ibraryDTr三cxrturrUnitsBChangeIatthiaWFailureCriteriaSfritetoFileReadfro三FileSectionsBIodeling三Ieflhinc5CheckingCtrle三NuabcranxCtrIa三ArchiveIodclSC<uplin/Ccqn三lulti-fieldSIHUp三1.oadv三Phyoice三PathOperations三SolutionSGeneralPostproc,：TiBeHistPostpro®R0三Tool国DesicnXplorerProbDcsicn三RadiationOpt4.4创建块拾取菜单MainMenu-Preprocessor-Modeling-Create-Voluoes-Block-ByDimension.弹出对话框,在"XI,X2文本框中输入0,0.01.在C1.Y2.文本框中输入0,0.01,在"Z1,Z2”文本框中输入0,0,1,单击"0K"按钮.SPreferencesPreprocessor田EleaentType舟RealConstantsBIntcrkalPropefflSectionsBlodeli11KOCreate三Keypointe®1.inesEAreasBVolIMMTAfflArbitraryZZKBy2CornersA三Cylinder田PrisiBBBlock用Sphere田ConcDTorusBNodesElementsContactPairSCircuit三TransducrrBSOpertc®iovr/Iodify田CopySReflect田CheckGcub©Delete4.5划分地元拾取菜单MainMenu-Preprocessor-Meshing-MeshToo1e弹出对话框，单击''Size.CUnlrUIs'',区域中"1.ines"后"Sot",按钮,弹出拾取窗口，随意拾取块X轴和、轴方向的边各一条（短边）,单击OK”按钮.弹出对话框.在"NDIV"文本棺中输入3,单击"Apply"按钮:再次弹出拾取窗11,拾取块z轴方向的边（长边），舱击o”按钮.在"NDIV”文木框中怆入15,单击"0K”按钮。Gtobd33FS*11SJJ2JFm6CCkvMSEor*ofcGfcA>mj1.mXe冰IVcMm3SMca门&He«Frw3.t*>dOmR*.Eht3Re11eSPreferencesPreprocessor三EleaentType三RealConstants田ntcrinlPropsSSections三IodclingSIcshingIrnhAttributeseshToolSizeCntrlsBIrszhnrOptn®ConcatenateQlcshOIodifyIcshCheckIesh田CIear三CheckingCtrls三NiunberingCtrln用Archiveldel三Coupling/Cc<m三iulti-fieldSetUpS1.oads三PhysicsSPathOperationsBSolutionEGeneralPostprocTiecHistPostpro0KOITool0Desi:rXplorer®ProbDesignSRadiationOptC3ScnninnEditor在XeSh区域.选择第元形态为exY六面体选择划分单元的方法为"Yapped"（映射）单击MeSh按钮，弹出拾取窗口，单击”OU按钮.U3<E211SNSYS图1单元划分4.6施加约束拾收菜单MainMenuSolutionDefine1.oads-App1y-StructuralDisplacementOnAreaS弹出拾取窗口,拾取Z=O的平面，单击Plr按钮.弹出对话框,在列表中选择"UZ",单击"Rpply”按钮;再次弹出拾取窗口,拾取y=0的平面,单击-0K”按钮，弹出对话框,在列表中选择"UT,单击"Apply”按钮再次弹出拾取窗口,拾取x=0的平面,单击-Or按钮，弹出对话框,在列表中选择FX单击"0K”按钮,所加约束及图81不同.主要是为了及推导式(8-1)所作的轴向振动假谀一样.约束施加的正确及否，对结构模态分析的影响II：常显著，因此对于该问题应非常留意，保证对模型施加的约束及实际状况尽求符合。ApplyUrRoTOnAre”G3tofXtaKOV202016出PickCViickGSinglCBoxr812OnCcircle1.oopCcunXaxxrwXlalB1.mxaHo.3ANSYS>v：38：uIz>vMin.M,lacHocUlanalyaiaofunifomstr_subspace4.7指定分析类型拾取菜单MiliUMenu-Solulion-AiialysisTypi-NewAnalySiS。弹出对话框,选择FyPe用Preferences0PreprocessorElSolution AnalysisTypeESNewAnalysis闫OnPgSS(3Define1.oadsO1.oadStepOptsBSEIanageroent(CIS)ResultsTrackingBSolve三ManualRczoningBlulti-fieldSetUpSADAISConnection三DiagnosticsSUnabridgedBenu0GeneralPostproc TiroeHistPostpro0ROIToolDesignXplorerHProbDesignSRadiationOptESSessionEditorQFinish49指定要犷展的模态数拾取菜单MainVlenu-Solution-1.oadStepOpts-Expansionpass-SingleExpand-Expiindodeso弹出对话框，在"RIODE.文本框中输入5.单击"0K"按钮。4. 10求解拾取菜单MainMenu-ScIution-So1ve-Current1.S"单击“SolveCurrent1.oadStep"对话框的“OK-按钮，Hlfli-Solutionisdone!"提示时，求解站束，即可否看结果了。因Preferences0PreprocessorBSolutionEAnalysisType三Define1.oads1.oadStepOptsSEIanagement(CIS)ResultsTrackingSurrcnt1.SolveSIanualRezoning三三ulti-fieldSetUpADAlSConnectionSDiagnosticsBUnabridgedIenuGeneralPostproc0TiieeHistPostproROIToolDcsignXplorcrProbDesignRadiationOptSessionEditor三Finish图2求解结果4.Il列表固有频率拾取菜单MainMeGeneralPostprocResultsSumnary.弹出窗口列表中显示了模型的前5阶频率，及表8相比照，可以看出结果In然存在肯定的误差，但及解析解足基木符合的。伐看完毕后，关闭该窗口。日PreferencesPreprocessor三SolutionQGeneralPostprocHData&FileOptsesultsSumar. ReadResultsFailureCriteria PlotResults1.istResults QueryResults OptionsforOutpResultsViewerWritePGRFileSNodalCalcsSElementTableSPathOperationsSSurfaceOperationsE1.oadCase CheckElcmShapeWriteResultsROIOperationsQSubmodeling FatigueEJSafetyFactor DefineZIodifyNonlinearDiagnosticsResetInnualRezoningBTi三eHistPostpro(9ROIToolDesignXplorerIINDEXOFDATASETSONRESU1.TSFI1.E*SETTIME/FREQ1.OADSTEPSUBSTEPCUIIU1.ftTIUE112650.111237712.122361945.133484352.14450.10165E*06155SET,USTComma"file4.12从结果文件读结果拾收菜单MainMenuGeneralPostprocReadResultsFirstSet.4.13变更视点为便于更好地视察模型的模态，拾取菜单UlililyMenu-PlOtCtrIS-PanZoomRotate.在弹出的对话框中,单击“1.eft”按钮.Pan-Zoom-Rotate拾取一单UtiIityMenU-PlotCtrlS-Rnimate-MOdeShape。弹出对话框，单击“0K”按钿。视察完毕，单击nAnimationControllerw时话框的71。Se按钮.SPreferences三Preprocessor三Solution GeneralPostproc DataftFileOpts ResultsSummary ReadResultsFirstSetNextSetPrcviousSetB1.astSetPickBBy1.oadStepByTime/FrcqBySetNumberBF1.OTRAN2.IAEFailureCriteriaPlotResults1.istResultsQueryResultsSOptionsforOutpResultsViewerWritePGRFileENodalCalcsElcacntTableSPathOperationsQSurfaceOperationsE1.oadCaseCheckElemShapeWriteResultsROBOperationsBSubnodelingo:SnJKZMUrrANSYSsx-Wh11M.OCC5.012Mcv2：201<1754MModelanlyi9ofUmfoE"jubp*CeANSYS3202S1C17SStlSM-25.22MModaltMly*ofUnHoE"jbpce4.15视察其余各阶模态拾取菜单MainMenuGeneralPostprocReadResultsNextSet.依次将其余各阶模态的结果徒入，然后重复步骡15视察完模型的各阶模态后，请读者自行分析制率结果产生误差的缘由，并改进以上分析过程。5吩咐流/C1.EAR/FI1.AiAME1EXAYP1.E8/PREP7ET,1,SO1.ID186MP,EX,1,2EllMP1PRXY1,0.3MP1DENS,1.7800B1.OCK.0.0.01.0,0.01,0,0.11.ESIZE1.,.31.ESIZE.2,31.ESIZB,9,15MSHAPE.OMSIIKEYt1VMESH,1FINISH/SO1.lANTYPE,MODA1.M0IX)PT,1.NB,5YXPAND,5D.I1UZDA13.1.YDA,5,UXSO1.VESAVEFINISH/POSTlSET.1.ISTSETiFIRST/VIEW,1,-1/REP1.OTP1.DlNM（三）E,10.0.5.,0SET,NEXTP1.DIANMODE,10,0.5,0FINISH