LMSVirtualLab学习心得之刚柔耦合分析详细流程

1、刚柔耦合分析详细流程主要内容：1）零件重新网格划分；2）材料和属性的设置；3）刚体的替代；4）RigidSpider的建立；5）柔性体Craig-Bampton模态计算以satellite为例，刚体模型建立完毕，进行计算，保存为satellite.CATAnalysis。lnalysisManagerLinksManager.l将需设进入网odiesSu用不到2D网格，激活的2D网格由于缺少材料属性会使模态计算失败,AnalysisModelNodesandElementsbaseactuator(baseactuator.l)yoke_rigid(yoke_rigid.l)yoke.rigi

2、d统型平面離匹平面零件几何休L点丄flt_refl_brack(flt_refl_brack.l)。-张DataConstraints轴系Joints格划分模块开始-Meshing-CADmeshing模块，对零件i进行sifacemesh（点击Advancedsurfacemesher，选择零件），然后进行3rahedron，选择面网格），采用四面体进行填充。此时，必须击TetDeactite（在特征树中选择AdvancedSurfacemesh，右键单击，选择Deacti|分析中记。GlobalParametersMeshTypeElementtype褚LinearOParabolic|G

3、eometry|Meshsize|QMeshOffset|OmmQuadsonlyMinimizetrianglesDirectionalmeshTetrahedronFillerMe&hPartsAdvancedSurfaceMesh.lRemove|R已moveallNodesandElementsIAdvancedSurfaceMeshTetrahedronFillerMesh.ManualMeshPart.lH?、RigidSpiderbyPickir、RigidSpiderbyPickiHProperties.1INewSolidProperty.l(ID,Motionlnterfa

4、ceSets.lOInterfaceSet.l(yoke_rigicNode.l(RevoIuteJoirNode.2(RevoIuteJoirModeSet.l进入StructurFiniteEle网格属性的设亠:新建数；新建一个SolidProTetrahedronFillerMesh),ElementtypeOParabolicLinear重新诳国Hide/Show寄属性圄OpenSub-TreeAlt4-Enter剪如Ctrl+X龍曩制CJ糊占Ctrl+CCtrl+V占.删除DelAdvancedSurfaceMesh.l对魚.mentAnalysisPre/Post-Material

5、s&Properties，进彳丁零件材料和DataSources泊松比和密度等基本该D格I可在特征树中择IsotropicMaterial,设置杨氏模量、匚reareGroi、l,tA淌OatgT出厅igit；“vidieridi选择刚才t建立的IsotropicMaterialo44|GeometryPlDurabilityWesh.lKnowledgewareAcousticsPlOptimization1h必Meshing44Nodes&Elements注FiniteElementAnalysisPre/Post44以ProductsatelIite.CATAnalysisyke_rig

6、id.CATPartAoaWsZAssemblyAnalysisMorphingCavityMeshingMeshCoarseningMeshTransformations&ConSMaterials&PropertiesAnalysisCasesPost-Processing44IsotropicMaterial0.33Density:|480|0kg_m/lodeling;hAnalysis;hAnalysisName|NewI&otropicMaterial.1MaterialIDBasicParameters:YoungsModulus:|2&+0gN_rp合|P01&50nsRati

7、o:4444rSolidPropertyS3ShowMoreParameters4444rrrI4詁型榻雜.JHr，.檸蠢.嚙尸二-SxfssiSPropertyID:Material:|NewIsotropicMaterialShowMoreParameters保存该分析为Flex.CATAnal不要关闭Flex.CATAnalysis（最小可），进入satellite.CATAnalysis分析文件，用上面柔NameNewSolidProperty.lAppli匚就ionRegion:Edit44性体分析文件替换刚体：选择要被替换的刚体，右键单击，选择：显示-Flex-MakeFlexib

8、lewithExistingData，在弹出的对话框中选择Flex.CATAnalysis文件，此时该刚体被vLMSVirtual.Lsb8B-SL2-satellite.CATAnalysis空开始文件霸飞回搖入工具窗口辛助替换。Alt4-Enter说明与回i孔FeatureBrowserNameNodesList双击lnterfaceSet.1下的No以)teJoint.1UlAlRfRCtrl+XMontionlntCon&trainedDOFsRigidSpidebyPicking癘MM占k:巳FlexiblePickaboe也可RigidSpiderbyPic模进在点HSdHlis匕

9、前面关联的重要性），即Rigidig.i对话框中，suppoht/NoaeiD格的所有节点der（蜘蛛网+晶I豊NodeId181720132122CreateaRigidSpiderbyPickingzJerfaceSets.1,开始-Motion-Flexiblein模态。Crajg-Bampton构件的关系格的创建。坐标系的原NearestNodeUpdateCenterNodeDefinitionType|Defne_SupSuppoirVNodeID原,1/顶贏lysis分析文件，此时lteCATAnalysi行RigidSpider界面模态，需要根据零件在整个装配体中与运动副以及其

10、他I将圏居中重新牺陵Hide/Show園OpenSub-TreeMm：特征树里多了is关联成功。进入柔性体设计模块：的创建，计算零件的Craig-BamptoAnalysisManagerLinksManager.lAnalysisModelNodesandElemeodiesbasea匚tu自(Iyoke_rigid(yob5MotioninterfaceSets.1InterfaceSet.l(yoke_rigid(yoke_rigid.l)sate山te.CAflt_refl_brack(约束的施加（这里可以看上出的RigidSpiderbyPickir此时，Undefined变为关联的

11、节点号。MotionlnterfaceSets.1InterfaceSet.l(yoke_rigid(yoke_rigid.l)Node.l(RevoIuteJoint丄19)Node.2(RevoIuteJoint.2.107)新建一个NastranCraig-BamptomSolutionSet,选择ReferencetheDefinedConstraintSet,在特征树中，选择InterfaceSet.1，点击确定。NewSolidProperty.!(ID:1)Materials.1L卜米NewIsotropicMaterial.l(ID：Drtn空兰g-Bampyofm_OiUtH

12、yGk,进行MO及起止频率，元毕后进仃计算。）4占Axes.lMotionlnterfaceSets.lNastranCraig-BamptonCase4Refere-n匚&theDefinedConstraintSetDSinglePointConst自OUseaNewConstraintSetSolutionParametersefinition，王要是设置计算模态的4NewSolutionParametersSelecttheSinglePointConstraintSetintheTreenterldes阶数Properties.!*-：；：RigidSpiderbyPicking.2

13、严r_I.SolutionGeneralParameters|Singularity|IncNewSolidProperty.l(ID:1)II*NewIsotropicMaterial.l(ID:1)牛&Axes.lJL鼻1AMotioninterfaceSets.1InterfaceSet.l(yoke_rigid(yoke_rigid.l)SolutionNameNameNastranCraig-BamptonSolution.1S-Materials.!SolutionTypeNormalModes(SOL103-Lanczos)ModesDefinitionStivise计;Node

14、.l(RevoluteJoint.l,19)No查查看模态计算果。21建）个tomSolution.1，双击Mods_Damping（粘性阻尼）幕血PC/D输入耳5；哉诟血a.e算算效率，本例只激活前旳U阶模“I.L虽斶NumberofModesStartFrequency(Hz)EndFrequency(Hz)XOOOO-双击DataSource，设置DataSetEdition.1进行设置：设置可以多选)，点击EditModes下20前10阶模态（按住Ctrl一些对计算结果精屢度影响不大的高阶攀提高，选择第11阶后的模态，点击DeactivateoInterfaceSet.l(yoke_r

15、igid(yoke_rigid.l)Na吐anCraig-BamptonSolution.1计算元毕后右键单击FlexibleAnimation,选择Stress,双击Stressfulltensorcomponent,Type选择Fringe(边缘)，Criteria选择Vonmises。点击Animate,选择SolutionSet,观看动画。-rNodesandElementsBodiesyoke_rigid(yoke_rigid.l)reflbrackbaseactuator(baseactuator.l):CenterOfGravity-yoke_rigid(yoke.rigid.!

16、)Flexibility.LMSDynBodyFromExisting.2(NastranCraig-BamptonSolution.1)InterfacesFlexibleSolutionSetModeSet.lNastranCraig-BamptonSolution.lITranstorm1000mmSet.l计算元毕后右键单击FlexibleAnimation,选择Stress,双击Stressfulltensorcomponent,Type选择Fringe(边缘)，Criteria选择Vonmises。点击Animate,选择SolutionSet,观看动画。FIexib111ty;L

17、MSDynBodyFromExisting.2(ModeSet.l)4倉InterfaceSet.l(yoke_rigid(yoke_r|亠黨flt_refl_brack(flt_refl_brack.l)将圏居中重新构造Hide/ShowDataConstraintsJoints+SubMechanismsFunctionComparisonDisplays囹園粘贴貝制馭占.删隐ICInitialConditionsCtrl+XAlt+EnterSub-TreeCtrl4-VCtrl+CDelImageEdition牢SolutionL费MotiAverageisoDijsentinuous

18、isoFringeSymbolTextCriteriaPirincipalvaluePirin匸ipailvalue(absolutevalue)TensercomponentVonMisesFlexible捋改器yStressVonMisestrpOccirrpnGeN_m1伶I尿+7Ng活RAp.7S7p1.2Qe切eQnRminrlflryoke_rigid(yoke_i计算元毕后右键单击FlexibleAnimation,选择Stress,双击Stressfulltensorcomponent,Type选择Fringe(边缘)，Criteria选择Vonmises。点击Animate,选择Solution