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1、装配体的有限元分析装配体的有限元分析 代理商:北京恒华创益科技发展有限公司代理商:北京恒华创益科技发展有限公司 电话电话: : 010 010 - - 62968229 / 6296818662968229 / 62968186 Email: support Page 2 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software 装配体的有限元分析装配体的有限元分析 本例中对于一个装配体,自动生成接触。运用粘接/胶接 (glued)和线性接触(linear
2、contact)两种接触类型,分别 对该装配体进行有限元分析。 Page 3 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software 分析步骤分析步骤 Step 1:导入装配体几何模型 Step 2:划分网格 Step 3:创建接触 Step 4:施加载荷和约束 Step 5:分析计算(glued 和 contact两种类型) Step 6:结果后处理 Page 4 2011. Siemens Product Lifecycle Management So
3、ftware Inc. All rights reserved Siemens PLM Software Step 1:导入装配体几何模型导入装配体几何模型 新建一个文件,filenew 修改首选项,filepreferences,将单位 制改为英寸制 导入装配体,fileimportgeometry(文 件名assembly.x-t) Page 5 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software Modelmaterial,点击load(加载),
4、然后选择材料库中的材料AISI 4340 ,点击ok,Define Material对话框,点击ok,然后点击Cancel Step 2:划分网格:建立材料属性:划分网格:建立材料属性 Page 6 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software Modelproperty, Define property对话框中点击Element/Property Type, 选择solid(实体单元),单击ok 。 Step 2:划分网格:建立单元属性:划分网
5、格:建立单元属性 Define property对话框中在material选项里 面选择上一步建立的材料AISI 4340 Steel, title设置为solid,点击ok,然后点击Cancel Page 7 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software Meshmesh controlsize on solid,点击select all,单击ok,弹出 Automatic Mesh Sizing对话框,单击ok Step 2:划分网格:网格尺
6、寸调整:划分网格:网格尺寸调整 Page 8 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software Meshgeometrysolids,点击select all,点击ok,在automesh solids对 话框property选项中选择solid,点击ok。 Step 2:划分网格:生成实体网格:划分网格:生成实体网格 Page 9 2011. Siemens Product Lifecycle Management Software Inc. Al
7、l rights reserved Siemens PLM Software Connectconnection property , title设置为glued,connect type 选择glued,点击defaults,点击 ok,点击cancel Step 3:创建接触:建立连接属性:创建接触:建立连接属性 Page 10 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software Connectautomatic,点击 select all,con
8、nection types选择face-face, connection property选择 property中上一步创建的 glued,点击ok Step 3:创建接触:建立接触对:创建接触:建立接触对 Page 11 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software modelloadon surface,new load set 对话框,点击ok,选择图示的面, 点击ok Step 4:施加载荷和约束:施加载荷:施加载荷和约束:施加载荷 Pa
9、ge 12 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software 点击force,direction选择normal to surface,value 100,点击ok Step 4:施加载荷和约束:施加载荷:施加载荷和约束:施加载荷 Page 13 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software model
10、constrainton surface,New Constraint Set 对话框,点击ok, 选择图示的曲面,点击ok Step 4:施加载荷和约束:施加约束:施加载荷和约束:施加约束 Page 14 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software 选择pinned-no translation,点击ok Step 4:施加载荷和约束:施加约束:施加载荷和约束:施加约束 Page 15 2011. Siemens Product Lifecy
11、cle Management Software Inc. All rights reserved Siemens PLM Software modelanalysis,点击new,选择NX nastran求解器,分析类型选择 static,点击ok,然后点击analyze Step 5:分析计算:分析计算:glued连接类型连接类型 Page 16 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software Viewselect或者直接F5,view sele
12、ct对话框选择deform,contour,点 击deformed and contour data,select postprocessing data对话框按图中 进行设置,点击ok,view select对话框点击ok,显示应力云图。 Step 6:结果后处理:结果后处理 Page 17 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software 应力云图 Step 6:结果后处理:结果后处理 Page 18 2011. Siemens Product
13、Lifecycle Management Software Inc. All rights reserved Siemens PLM Software Viewselect或者直接F5,view select对话框选择deform,contour,点 击deformed and contour data,select postprocessing data对话框按图中 进行设置,点击ok,view select对话框点击ok,显示位移云图。 Step 6:结果后处理:结果后处理 Page 19 2011. Siemens Product Lifecycle Management Softwar
14、e Inc. All rights reserved Siemens PLM Software 位移云图 Step 6:结果后处理:结果后处理 Page 20 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software 修改连接属性,在模型树下展开connections,展开properities,右键单 击glued,点击edit,title设置为contact,connect type选择contact,点 击defaults,friction设置为0.4
15、,initial penetration选择2.calculated/zero penetration,点击ok,点击cancel Step 5:分析计算:分析计算:contact连接类型连接类型 Page 21 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software modelconstrainton surface(为了保持稳定,需要增加额外的约束), 选择图示的曲面(销轴的两个端面id号为41,42),点击ok,create constraints
16、on geometry对话框中选择surfaceallow sliding only along surface,单击ok Step 5:分析计算:分析计算:contact连接类型连接类型 Page 22 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software modelanalysis,点击new,选择NX nastran求解器,分析类型选择 static,点击ok,然后点击analyze Step 5:分析计算:分析计算:contact连接类型连接类型 Page 23 2011. Siemens Product Lifecycle Management Software Inc. All rights reserved Siemens PLM Software Viewsele