chap2-焊接CAE前處理-Visual mesh網(wǎng)格劃分

焊接CAE主講：匡唐清華東交通大學(xué)機(jī)電工程學(xué)院材料工程系VisualMesh網(wǎng)格劃分前處理—VisualMesh網(wǎng)格劃分前處理—VisualMesh網(wǎng)格劃分VisualMesh8.0基本操作（30min）汽車零部件2D網(wǎng)格劃分（60min）汽車零部件Topo（拓?fù)洌┚W(wǎng)格劃分（45min）裝配件實(shí)體網(wǎng)格劃分（60min）提取曲線及由曲線構(gòu)建平面（20min）創(chuàng)建FE面及曲線混合（morphing）（20min）提取交線、分割面（10min）高級(jí)拓?fù)渚W(wǎng)格劃分（30min）前處理—VisualMesh網(wǎng)格劃分塑件2D網(wǎng)格劃分（40min）2D層網(wǎng)格劃分（10min）3D層網(wǎng)格劃分（10min）體積控制的四面體網(wǎng)格劃分（20min）高級(jí)實(shí)體網(wǎng)格劃分（25min）T型接頭CAD建模（25min）T型接頭網(wǎng)格劃分（25min）Tatal：7hour10minVisualMesh基本操作圖形用戶界面導(dǎo)入數(shù)據(jù)文件觀察模型選擇實(shí)體觀察實(shí)體刪除實(shí)體獲取制件信息設(shè)置快捷鍵自定義工具條練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_1VisualMesh基本操作圖形用戶界面VisualMesh基本操作導(dǎo)入數(shù)據(jù)文件打開(kāi)文件Basic_CAD_data.igs觀察模型Views工具條A 或 中鍵 旋轉(zhuǎn)S 或 右鍵 平移D 或 滾輪 縮放F 適合窗口顯示（Fitwindow） Z 指定區(qū)域放大顯示（Zoomarea） M 遮蔽/隱藏所選對(duì)象（Mask）翻轉(zhuǎn)等軸測(cè)視角File/GeneralPreferences

3DView

Direction-125,-125and93forX,YandZVisualMesh基本操作選擇對(duì)象Selection工具條矩形框選Shift+點(diǎn)選 反選Ctrl+D 取消所有選擇觀察對(duì)象單獨(dú)顯示 Exp瀏覽區(qū)點(diǎn)擊右鍵快捷菜單Locate 或選中對(duì)象后按L不同顯示方式 Part區(qū)單獨(dú)設(shè)置刪除對(duì)象Exp瀏覽區(qū)點(diǎn)擊右鍵快捷菜單Delete選中對(duì)象后Delete鍵VisualMesh基本操作獲取part信息Part區(qū)顏色欄右鍵/ModelStatisticsPart區(qū)ID或Name欄右鍵/

DocumentModelInfo設(shè)置快捷鍵工具條區(qū)域右鍵/Customize

Keyboard選擇更改后Assign完成自定義工具條工具條區(qū)域右鍵/Customize

ToolbarsNew新建工具條，而后在Commands頁(yè)中拖動(dòng)相關(guān)按鈕到新工具條中即完成功能按鈕的添加汽車零部件2D網(wǎng)格劃分導(dǎo)入IGES模型曲面清理分割曲面網(wǎng)格劃分修復(fù)網(wǎng)格檢查網(wǎng)格變換操作完成建模保存模型練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_2汽車零部件2D網(wǎng)格劃分導(dǎo)入IGES模型Tools>CADOptions取消曲面縫合（StitchSurface）汽車零部件2D網(wǎng)格劃分導(dǎo)入IGES模型打開(kāi)文件CAD_data_1.igs更改顯示方式汽車零部件2D網(wǎng)格劃分曲面清理Surface>SurfaceCleanup清理重合面

汽車零部件2D網(wǎng)格劃分曲面清理Surface>Mid-Surface

提取中面更改顯示方式

汽車零部件2D網(wǎng)格劃分分割曲面LocatePartID2選擇半邊的4個(gè)面右鍵/tools添加到新的part中（ID自動(dòng)為3）汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分LocatePartID3頂面2D>Blend(Spline)汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分頂面ID加1汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分倒圓面2D>AutomeshSurface

汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分大面2D>AutomeshSurfaceMethod為PaveBreakPoints刪除或插入斷點(diǎn)Split進(jìn)行分割，將復(fù)雜幾何分割為多個(gè)簡(jiǎn)單幾何汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分帶孔面旋轉(zhuǎn)構(gòu)建圓環(huán)（約2mm寬）2D>Revolve汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分帶孔面圓環(huán)下方2D>Blend汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分帶孔面圓環(huán)上方2D>Blend汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分帶孔面圓環(huán)左側(cè)2D>BlendMethod-Map汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分帶孔面圓環(huán)右側(cè)及上方剩余面2D>BlendMethod-Best圓環(huán)左側(cè)三角面Node>Byxyz,Locate建節(jié)點(diǎn)2D>ByNode手動(dòng)建單元汽車零部件2D網(wǎng)格劃分網(wǎng)格劃分光順節(jié)點(diǎn)2D>Smooth汽車零部件2D網(wǎng)格劃分調(diào)整網(wǎng)格使用NodeReplace（節(jié)點(diǎn)替換）,Split（分割）,Combine（合并）,Remesh（重劃）等來(lái)調(diào)整局部網(wǎng)格質(zhì)量

汽車零部件2D網(wǎng)格劃分檢查網(wǎng)格檢查單元法向并糾正Checks>ElementNormals汽車零部件2D網(wǎng)格劃分檢查網(wǎng)格檢查單元質(zhì)量并修復(fù)Checks>ElementQuality設(shè)置閾值，MeshQuality檢測(cè)汽車零部件2D網(wǎng)格劃分檢查網(wǎng)格檢查單元質(zhì)量并修復(fù)Checks>ElementQualitySplitFailedQuadsfor:MinAngleandWarpAngle將小角及翹曲角超標(biāo)的四邊形分割為三角形AutoCorrect自動(dòng)修復(fù)自動(dòng)修復(fù)后還有問(wèn)題則再手動(dòng)修復(fù)（移動(dòng)節(jié)點(diǎn)或分割單元）汽車零部件2D網(wǎng)格劃分變換操作完成建模創(chuàng)建對(duì)稱面上點(diǎn)LocatePart1Node>Between2Points汽車零部件2D網(wǎng)格劃分變換操作完成建模所有單元鏡像變換2D>Transform汽車零部件2D網(wǎng)格劃分變換操作完成建模消除鏡像后的狹縫Node>NodeReplace在中點(diǎn)置換汽車零部件2D網(wǎng)格劃分保存模型輸出FE數(shù)據(jù)（有限元數(shù)據(jù)，即單元與節(jié)點(diǎn)）File>Export…輸出模型及網(wǎng)格File>Saveas…汽車零部件Topo網(wǎng)格劃分導(dǎo)入IGES模型曲面清理網(wǎng)格劃分網(wǎng)格檢查保存模型批處理分網(wǎng)拓?fù)渚W(wǎng)格與批處理分網(wǎng)比較保存模型練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_3汽車零部件Topo網(wǎng)格劃分導(dǎo)入IGES模型Tools>CADOptions，去除縫合曲面StitchSurfaces選項(xiàng)打開(kāi)文件CAD_data_3.prt（先在UG中導(dǎo)出IGS格式）更改顯示方式汽車零部件Topo網(wǎng)格劃分曲面清理清理重疊面Surface>Cleanup Coincident偏置曲面得到中面，ID為3，更改顯示方式Surface>Offset汽車零部件Topo網(wǎng)格劃分曲面清理移除小孔（孔徑小于10）Surface>Cleanup得到HoleCurves集合，關(guān)閉其顯示汽車零部件Topo網(wǎng)格劃分曲面清理縫合Part3曲面為整體LocatePart3Surface>Cleanup汽車零部件Topo網(wǎng)格劃分網(wǎng)格劃分2D>TopoMeshElementSize:6CreateWasherSize：4CreateVertex汽車零部件Topo網(wǎng)格劃分網(wǎng)格劃分2D>TopoMeshAutomaticOptionsAlignSeeds對(duì)齊種子點(diǎn)DeleteEdgeSplitFaceChangeSeed#汽車零部件Topo網(wǎng)格劃分網(wǎng)格劃分2D>TopoMeshDeleteEdgeSplitFaceReplaceVertex替換頂點(diǎn)ChangeSeed#CreateVertex汽車零部件Topo網(wǎng)格劃分網(wǎng)格劃分2D>TopoMeshCreateWasher創(chuàng)建圓環(huán)ReplaceVertices（自動(dòng)）DeleteEdgeChangeSeed#使內(nèi)外種子點(diǎn)相同AlignSeeds汽車零部件Topo網(wǎng)格劃分網(wǎng)格劃分2D>TopoMeshMethod-BestMeshAllSurfaces汽車零部件Topo網(wǎng)格劃分網(wǎng)格檢查、自動(dòng)修復(fù)及輸出質(zhì)量表單Checks>ElementQualityCorrect輸入數(shù)值MeshQuality質(zhì)量檢測(cè)SplitQuad-WarpAngleAutoCorrect自動(dòng)修復(fù)Document輸出質(zhì)量表單汽車零部件Topo網(wǎng)格劃分保存模型輸出FE數(shù)據(jù)（有限元數(shù)據(jù)，即單元與節(jié)點(diǎn)）File>Export…輸出模型及網(wǎng)格File>Saveas…汽車零部件Topo網(wǎng)格劃分批處理分網(wǎng)關(guān)閉文件，重新打開(kāi)CAD_data_3.prt改變顯示方式2D>MeshProcess在ProcessTree中右鍵Begin汽車零部件Topo網(wǎng)格劃分批處理分網(wǎng)參數(shù)表設(shè)置及分網(wǎng)Elementsize=6MidplaneThinSolids=YesWashersize=4OK彈出單元質(zhì)量表MinSideLength=3汽車零部件Topo網(wǎng)格劃分批處理分網(wǎng)檢查網(wǎng)格質(zhì)量、自動(dòng)修復(fù)及輸出質(zhì)量表單Checks>ElementQualityCorrect輸入數(shù)值MeshQuality質(zhì)量檢測(cè)AutoCorrect自動(dòng)修復(fù)Document輸出質(zhì)量表單汽車零部件Topo網(wǎng)格劃分拓?fù)渚W(wǎng)格與批處理分網(wǎng)比較導(dǎo)入比較網(wǎng)格模型比較網(wǎng)格質(zhì)量表單保存模型輸出FE數(shù)據(jù)（有限元數(shù)據(jù)，即單元與節(jié)點(diǎn)）File>Export…輸出模型及網(wǎng)格File>Saveas…裝配件實(shí)體網(wǎng)格劃分導(dǎo)入IGES模型卡鉗分網(wǎng)復(fù)制單元完成卡鉗網(wǎng)格手柄分網(wǎng)銷釘分網(wǎng)網(wǎng)格檢測(cè)保存模型練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_4裝配件實(shí)體網(wǎng)格劃分導(dǎo)入IGES模型打開(kāi)文件CAD_data_4.igs觀察模型卡鉗分網(wǎng)Locateclamp帶孔板2D>AutomeshSurfacesElementSize-15Method-Best裝配件實(shí)體網(wǎng)格劃分卡鉗分網(wǎng)帶孔板(續(xù))3D>Sweep（Drag）Curve沿線掃掠Layers-4Biasing-4ID-21更改顯示方式裝配件實(shí)體網(wǎng)格劃分卡鉗分網(wǎng)(續(xù))彎曲板3D>Revolve(spin)Angle-89Layers-8Biasing-Equal裝配件實(shí)體網(wǎng)格劃分卡鉗分網(wǎng)(續(xù))平板3D>Map

選擇Source源、Target目標(biāo)及Trajectory跡線Layers-10裝配件實(shí)體網(wǎng)格劃分復(fù)制單元完成卡鉗網(wǎng)格3D>Transform選擇視角（便于后續(xù)選擇）選擇單元、對(duì)稱平面（對(duì)稱節(jié)點(diǎn)）Copy裝配件實(shí)體網(wǎng)格劃分手柄分網(wǎng)LocateHandle帶孔板2D>AutomeshSurfacesElementSize-15Split分割面Node>Align對(duì)齊節(jié)點(diǎn)到曲線裝配件實(shí)體網(wǎng)格劃分手柄分網(wǎng)帶孔板（續(xù)）3D>Sweep（Drag）選擇單元面及掃掠跡線Layers-2ID-22裝配件實(shí)體網(wǎng)格劃分手柄分網(wǎng)柱體2D>AutomeshSurfacesElementSize-15StitchID-11Node>Drop(Project)選擇節(jié)點(diǎn)投影到柱面（也可通過(guò)對(duì)齊到曲線實(shí)現(xiàn)）裝配件實(shí)體網(wǎng)格劃分手柄分網(wǎng)柱體（續(xù)）3D>Sweep（Drag）選擇單元面及掃掠跡線Count-50裝配件實(shí)體網(wǎng)格劃分銷釘分網(wǎng)3D>Sweep（Drag）ID-23裝配件實(shí)體網(wǎng)格劃分網(wǎng)格檢測(cè)LocatePart21/22/23檢查邊界，消除縫隙Checks>Boundary檢查重合節(jié)點(diǎn)Checks>CoincidentNodes檢查3D單元質(zhì)量Checks>ElementQualityCorrect裝配件實(shí)體網(wǎng)格劃分保存模型輸出FE數(shù)據(jù)（有限元數(shù)據(jù)，即單元與節(jié)點(diǎn)）File>Export…輸出模型及網(wǎng)格File>Saveas…提取曲線及由曲線構(gòu)建平面導(dǎo)入IGES文件從曲面提取曲線創(chuàng)建平面創(chuàng)建網(wǎng)格練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_5提取曲線及由曲線構(gòu)建平面導(dǎo)入數(shù)據(jù)文件打開(kāi)文件pin.igs更改顯示方式旋轉(zhuǎn)觀察模型從曲面提取曲線切換到Top視圖Curve>Extract提取曲線及由曲線構(gòu)建平面創(chuàng)建平面LocatePart2切換到等軸測(cè)視圖Surface>Flat(planar)更改顯示方式提取曲線及由曲線構(gòu)建平面創(chuàng)建網(wǎng)格3D>Revolve(Spin)選擇剛構(gòu)建的Surface旋轉(zhuǎn)3602DMeshElementsize-5Method-BestMesh3DLayers-50創(chuàng)建FE面及曲線混合morphing創(chuàng)建FE面變形曲線（FE面的邊界）FE面Topo分網(wǎng)練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_6創(chuàng)建FE面及曲線混合morphing創(chuàng)建FE面打開(kāi)文件rail.pc通過(guò)選擇器選擇Part2001的單元Surface>FESurfacefrom2DElements刪除原網(wǎng)格DeleteOriginalMeshID-2001LocatePart2001更改顯示方式創(chuàng)建FE面及曲線混合morphing變形曲線（FE面的邊界）Curve>CurveMorph分別選擇兩長(zhǎng)邊后確定得到中線ID-2005創(chuàng)建FE面及曲線混合morphingFE面Topo分網(wǎng)Surface>TopoMeshElementSize-12SplitSurfacebyCurves由中線分割曲面SynchronizebyProjection讓兩長(zhǎng)邊種子點(diǎn)由中線種子點(diǎn)投影而得Method-MapMeshAllSurfaces創(chuàng)建FE面及曲線混合morphing其他面類似操作提取交線、分割面導(dǎo)入IGES模型提取曲線、分割曲面、創(chuàng)建平面練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_7提取交線、分割面導(dǎo)入IGES模型打開(kāi)文件Bracket.igs提取曲線、分割曲面、創(chuàng)建平面切換到等軸測(cè)視圖Curve>ByIntersectionSplitSurfaces分割曲面CreateFlatSurface創(chuàng)建平面更改顯示方式未清理的汽車件的拓?fù)浞志W(wǎng)導(dǎo)入模型CAD模型清理創(chuàng)建與編輯拓?fù)洳⒎志W(wǎng)練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_8未清理的汽車件的拓?fù)浞志W(wǎng)導(dǎo)入模型打開(kāi)文件roof_stiffner.igs未清理的汽車件的拓?fù)浞志W(wǎng)CAD模型清理Surface>Split利用圓角面的邊界對(duì)相鄰面進(jìn)行分割刪除分割后多余的面未清理的汽車件的拓?fù)浞志W(wǎng)CAD模型清理Surface>Cleanup清除直徑小于10的小孔縫合曲面未清理的汽車件的拓?fù)浞志W(wǎng)創(chuàng)建與編輯拓?fù)洳⒎志W(wǎng)Surface>TopoMeshElementSize-5SplitSurfacebyCurves由曲線分割曲面未清理的汽車件的拓?fù)浞志W(wǎng)創(chuàng)建與編輯拓?fù)洳⒎志W(wǎng)Surface>TopoMesh（續(xù)）AutoClean自動(dòng)清理面FillGaps填充縫隙/孔洞CreatewasherSize-4創(chuàng)建環(huán)未清理的汽車件的拓?fù)浞志W(wǎng)創(chuàng)建與編輯拓?fù)洳⒎志W(wǎng)選擇面按L僅顯示2D>TopoMeshElementSize-5顯示EdgeCount單元數(shù)底下長(zhǎng)邊Count數(shù)改為79（ChangeSeed#）兩短邊Count-6，BiasingType-指數(shù)型-2未清理的汽車件的拓?fù)浞志W(wǎng)創(chuàng)建與編輯拓?fù)洳⒎志W(wǎng)2D>TopoMesh（續(xù)）Method-MapAutoSel.Crnr.Pts自動(dòng)選擇角點(diǎn)MeshSurfaces分網(wǎng)右鍵-View-ShowAllMethod-BestMeshAllSurfaces對(duì)所有面分網(wǎng)DetachMesh將網(wǎng)格與面關(guān)系脫離保存塑件2D網(wǎng)格劃分導(dǎo)入IGES模型生成構(gòu)造曲線零件基體分網(wǎng)筋板分網(wǎng)零件壁厚中面移動(dòng)網(wǎng)格網(wǎng)格連接編輯網(wǎng)格保存模型練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_9塑件2D網(wǎng)格劃分導(dǎo)入IGES模型打開(kāi)文件Plastic_Model.igs生成構(gòu)造曲線曲線抽取（筋板側(cè)面邊界）LocatePart2只顯示筋板Curve>Extract曲線端點(diǎn)上創(chuàng)建節(jié)點(diǎn)LocatePart3Node>OnCurve刪除中間節(jié)點(diǎn)塑件2D網(wǎng)格劃分生成構(gòu)造曲線對(duì)齊節(jié)點(diǎn)到曲面邊右鍵-View-ShowAllNode>Align對(duì)齊筋板節(jié)點(diǎn)到基板邊線上兩點(diǎn)中間創(chuàng)建節(jié)點(diǎn)（6點(diǎn)）Node>Between2Points塑件2D網(wǎng)格劃分生成構(gòu)造曲線創(chuàng)建新曲線除中點(diǎn)，刪除其他節(jié)點(diǎn)Curve>Morph曲線投影到縫合面上塑件2D網(wǎng)格劃分導(dǎo)入IGES模型生成構(gòu)造曲線零件基體分網(wǎng)筋板分網(wǎng)零件壁厚中面移動(dòng)網(wǎng)格網(wǎng)格連接編輯網(wǎng)格保存模型2D層網(wǎng)格劃分導(dǎo)入IGES模型創(chuàng)建2D層網(wǎng)格練習(xí)文件\toolbox2012\02_Tutorials\06_Visual_Mesh\01_V6.0_Tutorials\Tutorial_102D層網(wǎng)格劃分導(dǎo)入IGES模型打開(kāi)文件turbo_bush.igs創(chuàng)建2D層網(wǎng)格選擇剖面，按L切換到合適視角，線框顯示2D層網(wǎng)格劃分創(chuàng)建2D層網(wǎng)格（續(xù)）層網(wǎng)格2D>LayerMeshElementSize-1PartID-1CreateCollectors:ForLayersandCoreMeshCollectorPrefixName-DATA2D層網(wǎng)格劃分創(chuàng)建2D層網(wǎng)格層網(wǎng)格2D>LayerMesh(續(xù))BreakPoints移除倒角上方兩斷點(diǎn)下方四個(gè)角點(diǎn)CornerMethod-Regular2D層網(wǎng)格劃分創(chuàng)建2D層網(wǎng)格層網(wǎng)格2D>LayerMesh(續(xù))No.ofLayerstoAdd:3外3層ThicknessIndividual:0.05