ppt_CN06-HYPERMORPH-v2017 2-CN

1、AltairHyperWorks2017.2,有限元前处理Hypermorph简介,TrainersNameMonthXX,2017,Chapter6HyperMorphIntroduction,HyperMorph介绍Morphing技术自由变形功能(FreeHands)变形域与控制柄方法(DomainsandHandles)变形体方法(MorphVolumes)几何映射变形功能(MaptoGeometry）问题与答案,2,Morphing技术简介,HyperMorph是什么?HyperMesh中的morphing模块可以以有效的，逻辑的和直观的方式对一个模型的网格进行变形，且该方式只会引起

2、最小的单元畸变。Morphing技术应用迅速交互地或参数化地改变现有模型的几何将已有网格映射到一个全新的几何上为优化设计创建或编辑形状变量HyperMorph方法MorphVolume复杂有限元模型变形的有效方法GlobalandLocalDomainsandHandles通过控制域与控制柄进行控制的理想化变形方法Freehand没有任何morphing对象的直接变形方法,3,4,Morphing中的对象控制柄(Handles)在变形过程中控制模型形状变形域(Domains)将模型划分成不同区域(用于基于变形域的网格变形)变形体(Morphvolume)一个立方体形状的体，可以控制其内部所有对

3、象的变形(用于基于变形体变形方法的网格变形)变形约束(Constraints)在网格变形过程中用于控制节点的运动对称性控制(Symmetries)强制某些区域对称变形保存形状(Shapes)将模型变形状态保存，以备调用,Symmetries,Handles,Domains,MorphVolume,Morphing术语与方法,HyperMorph方法总览,5,自由变形Freehandmorphing,几何映射变形功能MaptoGeometry,变形域与控制柄方法DomainsandHandles,变形体Morphvolumes,变形域和控制柄,6,Demofreehand,WorkAlongDe

4、monstrationFreeHandApproachTranslateRotateOffset,(6a-PROPELLER-FREE-HANDS.hm),Exercise:FreeHandsMorphingFileNameandLocation:Model-FilesCH6-HYPERMORPH6a-PROPELLER-FREE-HANDS.hmObjectives:LoadthemodelMorphthebladeMethod1-FixedValuebasedmethodThelengthofthepropellerbladehasincreasedby100.Thefixednodesd

5、onotmove.Theaffectedelementswerestretchedevenlytomaintainelementquality.Thestretchingoftheelementstakesplacebetweenthemovingnodesandthefixednodes.Method2-Interactivebasedmethod,usingmanipulatorsThelengthofthepropellerbladehasincreasedusinginteractivebyclickinganddraggingoneofthethreearrows/arcs/righ

6、tanglesofthemanipulatortorespectivelytranslate/rotate/movethenodes.Thefixednodesdonotmove.Theaffectedelementswerestretchedevenlytomaintainelementquality.Thestretchingoftheelementstakesplacebetweenthemovingnodesandthefixednodes.HINT:.Model-FilesCH6-HYPERMORPH6a-propeller.avi,Do-it-yourself,7,8,Demo-D

7、omainsandHandles,WorkAlongDemonstrationDomainsandHandlesApproachCreate2DDomainsandHandles,(6b-DOMAINS-HANDLES.hm),Exercise6b:UsingDomainsandHandlesFileNameandLocation:Model-FilesCH6-HYPERMORPH6b-DOMAINS-HANDLES.hmObjectives:LoadandreviewthemodelAutogenerate2-DdomainsandhandlesMoveelementsintoanew2-D

8、domainSplittheedgedomainoftheradiustohavemorecontrolwhenmorphingAddlocalhandlestothe2-DdomainonthepartsleftsidePerformbasicmorphingtounderstandhowdomainsandhandlesinteractwitheachotherandthemeshHINT:Model-FilesCH6-HYPERMORPH6b.mp4,Do-it-yourself,9,10,Demo-MaptoGeom,WorkAlongDemonstrationDomainsandHa

9、ndlesApproachMaptoGeomLineDifference,(6c-MAP-TO-GEOM.hm),Exercise6c:ChangingtheCurvatureofaBumpertoaCurvedLineFileNameandLocation:Model-FilesCH6-HYPERMORPH6c-MAP-TO-GEOM.hmHINT:Model-FilesCH6-HYPERMORPH6c-MAP-TO-GEOM.mp4Objectives:LoadandreviewthemodelMorphthebumperMaptoGeometry:ChangingtheCurvature

10、ofaBumpertoaCurvedLine,Do-it-yourself,11,12,Demo-MorphVolume,WorkAlongDemonstrationMorphVolumeApproachCreatemorphvolumes,(6d-body-side.mp4),Exercise6d:ChangingtheShapeoftheB-pillarwiththeHelpofMorphVolumeFileNameandLocation:Model-FilesCH6-HYPERMORPH6d-body-side.hmObjectives:LoadandreviewthemodelCrea

11、temorphvolumesSplitthemorphvolumesChangetheprofileoftheb-pillarMethod1-FixedValuebasedmethodMethod2-Interactivebasedmethod,usingmanipulatorsHINT:Model-FilesCH6-HYPERMORPH6d-body-side.mp4,Do-it-yourself,13,1)WhichofthefollowingisaMorphingApplication?ChangegeometricshapedescribedbyameshAlterdimensionsofameshedpartparametricallyFitoldmodeltonewdesigndataAllofabove2)HyperMorphtoolisusedfor:2Dremeshingcreating1Dele