安世亚太培训形状优化

Workbench 11.0ANSYS? Inc. ProprietaryInventory #002590WSA11-110/10/2008©2008 ANSYS, Inc. All rights reserved.ANSYS |Workshop SupplementShape Optimization作业M3-目标通过使用DS的形状优化工具，说明基于零件质量减少目的，几何结构的可 变化情况。要求减少40%的零件质量在DS的操作界面中生成多个目录树分支，以便能够在求解完成之后进行多 个结果的对比Shape Optimization作业M3-假设此几何体是由两个Parasolid文件组成的，在实际练习中，用户一般可以从 自己习惯使用的CAD系统导入几何模型，仅需要做必要的修改即可。出于 培训的要求，我们提供一个已经修改好的几何模型文件。在此练习中的几何模型和边界条件很简单，该练习只是为了说明形状优化 的基本情况，因此，不会有过多的时间浪费在处理求解的过程中。Inventory #002590WSA11-4Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization练习11-起始页IANSYSIWorkshop SupplementStart1-从发射台启动Simulation.NewErnrt? Fio|e<tGecnW2.关闭 aMap of Analysis Types95.3.输入几何：a. 从内容相关工具栏选择Geometry>Fromfile.b. 浏览文件夹，打开"Bracket_Optx_t”Geometr* 宦I Geometry Unit CorvJw Recent GetiyPoint MassOutline画H 一pp-to-date list etry. Link 怯 from an| op的 CAD system 0了苛1倂|g>| From File.l ModelW7r?iiiiTdiZfa7inntKiTCSirulccnXVJTODYNEZ <SeccneO7cf Anasis Types;ate Indt?pmdunl or Linked Anclye«price veriicnc c£ Shvjhthn each Envlprrosrt： f6pr«nU d spedfic physi “ end 0g Setect *8吝65 to adi to tb3 OuUr% Arrows hdeeteWing waan niidor th lcordUca.emienr Thcrrnllai7imdlbfiShflpe O;drnc<conj 乜 FOOOJ6ModdnlhermdM InedrftjAnaG R<rdom 型 Wbrau：nOK arrelOptions|S)i、ihdDyneffics |:说bt«CS百mcn»c Reronscerter vducs n tM urit s/sts sehctcd tncfcr the Urits menur Inchde 衍isl nesUts eppropciate f 1 ® DuUte macariak Q 8irte materS LainchShwhtion U>ixard £ Dfcpla/khk pnd at steftupInventory #002590WSA11-5Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization练习A11 -前处理IANSYSWorkshop Supplementc. 选中 “Mesh"分支,RMB > Insert > Methodd. 选择体，点击“Apply"e.将“Method” 从 “Automatic”（default）调整为 “Tetrahedrons乃 注意由于进行拓扑优化分析,推荐用户在形状优化执行过程中将网格的“Relebance”设置得高 些.注意形状优化只允许使用四面体单元,虽有些几何体会自动采用四而体单元,但其他的情况仍 需要对所使用的单元进行网格控制。例如在这次练习中,几何模型就町用六而体单元进行扫略划 分网格.Inventory #002590WSA11-6Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization练习A11 -前处理IANSYSWorkshop SupplementInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization练习A11 -前处理IANSYSWorkshop SupplementInsert触 Methodsvancc/anced丿 Generate Nesn'J Prevew Sirface MeshShow Swsepatte Bedes魁 SizingX Ccntact Sizing A Refinementittsticsz Clean 述）RcncmsH McppoJ Fccc Details ofH Pat ch Conforming Method" - Method 够 Mctch ControlPatRelevan:Ej| ScopeI GeometrySJld. em ic ionSuppressedNoMethodi TetrahedronsAlgorithmElement Midside NodeExpansion FactorTetrahedrons rrwn?Sweep CFX-MeshUl Illi IOI IL153.00Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Workshop SupplementShape Optimization作业A11 -环境Inventory #002590WSA11-7Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.(I New Analysis j 芒Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Static StructuralFlexible DynamicRigid DynamicHarmonic ResponseModal6设置分析类型: 从 “New Analysis"菜单，选择"ShapeOptimization”Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Linear BucklingInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.7为模型添加约束:(oil Shape OptimizationI-A Steady-State ThermalQi Transient Thermal臼 Magnetostatica将选择过滤器调整为面选择模式 b.选择如图所示的两个柱面.Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.c. RMB > Insert > Fixed Support耳7 Map of Analysis Types.Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-环境ANSYSWorkshop SupplementInventory #002590WSA11-8Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-环境c.调整为通过“Component"定义为模型添加载荷:a选择如图所示的柱面.b. RMB > Insert > Force.d.输入 X = 10N; Y = 5NInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-环境Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-环境Details oF "Force11S日ScopeScoping MethodGeometry SelectionGeometry1 FaceDgfinitioriDefine ByComponents丨v/n戸1X Component10. N (rampedY Component 5. N (ramped)L componentu. w cramped)SuppressedNoInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11 -求解9.设置 aShape Finder 选项:a.选择solution分支.b. RMB > Insert > Shape Finder.c. 在 aTarget Reduction”栏中键入 “40%"10.求解IANSYSIWorkshop Supplement-/關 SolutionTnFrirrnationI - *®M Shape Finder 1Details of ''Shape Finder-BScopeGeometryAll BodiesTarget Reduction40. %Original MassOptimized MassMarginal MassInventory #002590WSA11-9Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization 作业A11 结果Shape Optimization作业A"-结果ANSYSWorkshop Supplement11 在求解结束后，点击形状搜索器，以查看结果.Shape FinderType: Shape FinderUnit: kg1/23/2007 10:02 AMMWInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization 作业A11 结果R emoveMarginalK"pDetails of "Shape Firidgr"日 ScopeInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization 作业A11 结果Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization 作业A11 结果仍然保持零件结构的沅整性。注意在图象中显示为红色的区域为可以删减的材料, 注意在明细窗屮显示我们可以减少40%的质量.IANSYSWorkshop Supplement虽然该结果只是一个概念性的指导，提示用户在零件的什么地方可以安全地删减材料。但是我们可以利用图形窗口上的“标尺”工具更好地确定零件所要修改的基于这些结果，我们通常会返回到几何模型原来建模的CAD中去，进行修改.Inventory #002590WSA11-11Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization练习A13-检验ANSYS |Workshop SupplementIII记住，这些形状的优化的结果仅仅指明在什么地方是可以通过删减材料来 优化结构，但没有显示出在删除材料零件会表现出怎样得到结构性能。一个完整的工程练习要求我们要验证每一个新的设计以确保它表现出来的 性能不会危及结构的安全性。如果我们采用的是一个商业的CAD系统（或是DesignModeler）,我们将 能轻易地修改几何模型，并只需更新模型便可继续我们的工作。在此练习中，我们开始便采用Parasolid文件,因此，我们只需要输入一个 修改过的Parasolid格式的零件模型便可。Inventory #002590WSA11-12Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-检验IANSYSWorkshop SupplementInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-检验Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-检验12.输入修改后的CAD模型：a选择 Model分支，“RMB > Duplicate".b选择Model 2分支，Geometry > From File“c.浏览文件夹，打开"Bracket_Opt_2.x_t”X Cut二 CleanX Delete ab RenameANSYSWorkshop Supplement由于这个新的集合模型体现T我们优化后的结果， 因毗我们不会再次使用“shapefindeL工具，而是 去进行求解，以获得合适的结构分析的结果。通过复制原模型所有的定义都会被复制到新模型中 ,但是，边界条件的范围必须在新模型中建立 EJ13.将分析类型调整为 “Static Structural” analysis:a. 选择 “Model 2”分支的 “Shape Optimization"分支Lder- Model 2try-一懋 Mesh改变"Analysistype"为"Static Structural，Inventory #002590WSA11-15Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-检验a.-Qhape OptimizationVW轸 Fixed Support 罟 Force- ?； Solution彳 Al Solution InformationInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11-检验OptionsReference TempDetails of "Shape Optimization" -Definition:Physics TypeAnalysis TypeShaggmization_Static Structural=tRigidHarmonic ResponseModal：vInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11 -求解IANSYSIWorkshop SupplementInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11 -求解Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业A11 -求解Suppressed No14.重新施加载荷和约束：a选择环境2的“Fixed Support"（注意到几何未定义, 状态标示为问号）.b.选择约束的柱面，在详细列表框单击“Apply” c选择环境2的"Force"分支Details of "Fixed Support11一&j j Scopeal _b.bcciDina ivierriOa jeorne rrbgiecriorftSuniuoiirf ' i.GeometryApplyCancelDetinitionT ypeFixed Su pportd选择施加载荷的柱面，在详细列表框单击“Apply”IANSYSIWorkshop Supplement15.要求结果：1.选择 Shape Finder 结果分支,RMB > delete2选择Solution分支，RMB > Insert > Stress > Equivalent (Von-Mises) Stress3 RMB > Insert > Deformation > Total Deformation 16.求解Inventory #002590WSA11-17Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业AM -检验ANSYSWorkshop Supplement17.形状优化的最后一步是评估结构分析的结果，以确认对几何模型的修改是否降低 了模型结构所期望的性能.Inventory #002590WSA11-18Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业AM -检验Inventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业AM -检验000995360008744400075352000390750002698300014891000027984 Min0000632600511670.011163 MaxEquivalent StressType: Equivalent (vorvMises)： Unit: MPaTime: 11/23/2007 11:14AMTotal DeformationType: Total Deformation Unit: mmTime: 11/23/2007 11:14 AM5.5868e-5Max4.966e-54.3453e-53.7245b巧31038e52483e51.3623倂51.2415 倂 56.2075e-6OMinInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.Shape Optimization作业AM -检验Total DeformationEquivalent StressInventory #002590WSA11-#Introduction to Workbench SimulationANSYS, Inc. Proprietary10/10/2008©2008 ANSYS, Inc. All rights reserved.