HDEngine中文教程Word文档下载推荐.docx
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勾选changeinputedgemesh.changeinputedgemeshisrequiredtoapplyallcreatedmodificationstotheedgemeshastheywillbenecessaryforthefurthermeshingprocess.
选择Interpolationtoperformtheprocessandthen选择Canceltoexit.结果如图所示:
生成的网格名称为:
TFI_1_of_bowl_edge_1
(1)
2选中bowl_edge
(1)从FH中选则selections,出现如下对话框:
Type选为cell,name随意取名,如输入compensation,点击creatandmodify,出现如下对话框:
将addbypolygon改为addbyangle,angle默认为40。
点击define,将包围网格TFI_1_of_bowl_edge_1
(1)的三条边分别选中,三条线段高亮度显示:
三条线段构成的整体便是compensation,选择其selections中的view项,在name中勾选compensation,然后apply(点击两次),则compensation将脱离bowl_edge
(1)而单独显示在窗口中:
选中compensation,右键选中cut,则bowl_edge
(1)将自动显示在桌面上:
选择FH->
MeshTools->
Connect,在选择其中的Conformconnect然后Calculatedefaultvalue,目的是使其具有一致连续性,消除小节点。
选择edgetools中的2DMeshing,选取其中的项目paving,填写其中的内容如下图:
生成的图如下,名称为PAVINGMESH_1_of_bowl_edge_1
(1)
其中最外面一薄层,指的是numberofconstantthicknesscelllayers=1
如果是2,则为两层:
Rowadjustmentdelay是网格的内部参数,此时输入6,如改为其他值,则相应发生变化,如为5时,则有:
对compensation_edge
(1)进行同样的操作,可以画出类似的网格。
此时Numberofconstantthicknesscelllayers为2,其他的值不改变。
生成的名称为PAVINGMESH_1_of_compensation_edge_1
(1)
1.3joinmeshes
TFI_1_of_bowl_edge_1
(1)、PAVINGMESH_1_of_compensation_edge_1
(1)、PAVINGMESH_1_of_bowl_edge_1
(1)同时显示在桌面上。
选择ConnectfromMeshToolsintheFHApplicationBar.打开JoinMeshes同时选中TFI_1_of_bowl_edge_1
(1)、PAVINGMESH_1_of_compensation_edge_1
(1)、PAVINGMESH_1_of_bowl_edge_1
(1)
选择JoinMeshestoperformtheprocessandanewmeshnamedJoined_1appearsintheprojecttree。
选中Joined_1and选择theConformconnecttab,选择Calculatedefaultvaluethen选择Conformconnecttoperformtheprocessandthen选择Canceltoexit.
1.3Enlarge
1、选择EnlargefromMeshToolsintheFHApplicationBar
2、选择theRotatetabandclickontheJoined_1meshintheworkingarea
3、Enter15forNumberofSubdivisionsand+45forAngle.
4.选择theZaxisforrotation
5.选择Rotatetoperformtheprocessandthen选择Canceltoexit。
生成的图形如下,
名称为rotated_1_of_Joined_1_1
(1)。
6.选择FrontPosition,调整视图到如下:
7.选择therotated_1_of_Joined_1tobowl,打开selections,创建包括定面的facebyusingAnglebyAngleoption,如下图:
在viewtab中,选择thetop,选择applyandclickoktoexit。
8选择theExtrudetabfromtheEnlargetoolandclickontherotated_1_of_Joined_1_1
(1)tobowlmeshintheworkingarea
9.选择Predefineddistribution
10.选择edgeandclickonedge_sweepintheworkingarea
11.选择Vectorandenter0forx,0foryand1forz
12.选择Extrudeandthen选择Canceltoexitandanewmeshnamedbowl_1appears
13.IntheSelectionsViewwindow,deactivatethetopselection
生成enlarge_1_of_Joined_1_1_1
(1)
同时选中rotated_1_of_Joined_1_1
(1)和enlarge_1_of_Joined_1_1_1
(1)
选择JoinMeshestoperformtheprocessandanewmeshnamedJoined_2appears
intheprojecttree
14ClickontheJoined_2meshintheworkingarea
15.选择theConformconnecttabandcheckthatJoined_2istheselectedmesh
16.选择Calculatedefaultvaluetocalculatetheappropriatetolerancevalueandthen
选择Previewtoviewthemodification
17.选择Conformconnecttoperformtheprocessandthen选择Canceltoexit
18RenamethemeshJoined_2toHD_Engine_180
19.选择info中Checktoperformtheprocessandthen选择Canceltoexit.Thereshouldbeno
NegativeNormalsandthemeshshouldlooksimilartothefollowingfigure.IfthereareNegativeNormals,theorientationofthepatchesofthe2Dmeshshouldbechecked。
结果如下:
2.GenerateMovingMesh
2.1DefineSelectionsforMovingMesh
选中HD_Engine_180,通过selections来创建下表
cylinder
整个几何体(42060cells)
buffer
除了bowl和顶层之外的部分(26220cells)
bowl
勺子部分及与勺子部分相接的与气缸壁接触的部分(14460cells)
2.2DefineSelectionsforBoundaryConditions
head
活塞顶部(1380cells)
Liner
活塞的外部半径(360cells)
Radius
燃烧室半径(428cells)
Cyclic
活塞剖面一(2804cells)
Cyclic_rot
活塞剖面二(2804cells)
Comp_vol
与勺子和气缸壁接触的外表面(165cells)
Pistpn_mov
W燃烧室的外表面(1545cells)
Comp_vol_moving
与勺子和气缸壁接触的内表面(240cells)
所有的创建的特征如下:
2.3DefinetheConnectionoftheCyclicBoundary
1.选择FH->
ConnectApplicationBar
2.ClickontheHD_Engine_180meshintheworkingarea
3.选择theBoundaryconnecttab
4.选择AddandBoundary_connection1isautomaticallyenteredinthefield
5.选择Conformsurfacemeshes,asthecelldistributionisthesameoneachsideofthe
Interface
6.选择cyclicfromtheinterfaceApull-downmenuandcyclic_rotfromthe
interfaceBpull-downmenu
7.选择Conformingsurfacemeshes
8.选择Boundaryconnecttoperformtheprocessandthen选择Canceltoexit
2.4MovingtheMeshfrom180°
CAto320°
CA
1.选择FAMEEnginefromCreateMeshintheFMApplicationBar
2.IntheMesheswindow,选择选择meshandclickontheHD_Engine_180meshin
theworkingarea
3.Enter180forAngleandthen选择CreateMovingSet.HD_Engine_180
180.000appearsinthelistbelow
4.选择theMovingmeshpartstabandenterPistonforNameofmovingpart
5.选择Addmovingpart.
6.选择bowlfromtheMovingselectionpull-downmenu,bufferfromtheBuffer
selectionpull-downmenuandcylinderfromInterpolationselectionpull-downmenu.
7.选择PistonDisplacementFunctionandenterthefollowing:
Conrod:
0.265Stroke:
0.1651Pistonoffset:
0Point1ofaxis:
0,0,0
Point2ofaxis:
0,0,1
8.选择theControlcentertabandenterthefollowing:
Startangle:
180Endangle:
320Angleincrement:
20Interpolationincrement:
0
9.选择Moveandthen选择SaveMovingSets.选择Closetoexit
2.5GeneratingtheRezoneMeshat320°
在上部分选择Moveandthen选择SaveMovingSets之后,将产生HD_Engine_180_moving
(2)
OpenthemeshHD_Engine_180_moving
(2)asshowninthefollowingfigure。
1.RenamethecopiedmeshtoHD_Engine_320,上面的图片就是活塞处于曲轴转角为320度时所处的位置
2.选择FH->
Refine->
RedimensionandensurethatHD_Engine_320
isalreadyselected
3.选择Createanddefinetwoneighboringpointstodefinethedirection,选中的方向将高亮度显示。
4.PickandclickonthefirstcelloftherangetodefinetheStartcell.RepeatthisforEnd
cell.
5.选择FindlayersandLayer_0appearsunderLayerlist.选择Layer_0intheLayer
listto
6.Enter10fortheNumberofdistributionsandkeeptheCompressionfactorat1.
7.选择Redimensiontoperformtheprocessandrefertofollowingfigureforthefinal
state.Thoseselections,whichhavebeenmodifiedbyredimensionwillbesettozero。
完毕之后,在firstpoint和secondpoint间将均匀分布10层网格。
2.6CheckSelectionsforMovingMeshandBoundary
Conditions
Selections-ViewWindow(HD_Engine_320)
1.ChecktheBoundaryconnectivityasdescribedinsection3.2.4.3.Ifitismissingthen
redefineit.
2.ChecktheConformconnectivityasdescribedinsection3.2.3.4.Ifitismissingthen
2.7MovingtheMeshfrom320°
CAto340°
1.选择FAMEEnginefromtheFMApplicationBar.
2.IntheMesheswindow,选择选择meshandthenclickontheHD_Engine_320
meshintheworkingarea.
3.Enter320forAngle.
4.选择320.000inthestatusrow(HD_Engine_180320.000)withtheleftmouse
button.
5.选择AppendmeshandRezone320.000appearsinthelist.
6.选择theControlcentertabandenterthefollowing:
320
Endangle:
340
Angleincrement:
10
Interpolationincrement:
7.选择MoveandthenSaveMovingSets.选择Closetoexit
2.8GeneratingtheRezoneMeshat340°
1.OpenthemeshHD_Engine_180_moving(4)
4.选择RedimensionfromtheMeshToolsintheFHApplicationBarandensurethat
HD_Engine_320isalreadyselected.
5.选择Createanddefinetwoneighboringpointstodefinethedirection,wherethenew
distributionisrequired.Theselecteddirectionismarkedbyhighlightedcells.
6.DefinetherangeforthenewcelldistributionasshowninFigure3-13.Thereforeselect
PickandclickonthefirstcelloftherangetodefinetheStartcell.RepeatthisforEnd
7.选择FindlayersandLayer_0appearsunderLayerlist.选择Layer_0intheLayer
listtogetaccesstotheinputfieldsbelow.
HD_Engine_340
8.Enter5fortheNumberofdistributionsandkeeptheCompressionfactorat0.
9.选择Redimensiontoperformtheprocess.Thoseselectionswhichhavebeenmodified
byredimensionwillbesettozero.
2.9CheckSelectionsforMovingMeshandBoundary
Selections-ViewWindow(HD_Engine_340)
2.10MovingMeshfrom340to360and360to380
2.IntheMesheswindow,选择选择meshandthenclickontheHD_Engine_340
3.Enter340forAngle.
4.Clickon340.000instatusrowHD_Engine_180.选择AppendmeshandRezone
340.000appearsinthelist.
5.选择theControlcentertabandenterthefollowing:
360
5
6.选择MoveandthenSaveMovingSets.
7.选择theControlcentertabandenterthefollowing:
380
8.选择MoveandthenSaveMovingSets.选择Closetoexit.
点击hd_engine_180_moving右键,单击open按钮,跳出如上对话框:
其中,1→hd_engine_180_moving
2→hd_engine_320_moving
3→hd_engine_320_moving
4→hd_engine_340_moving
5→hd_engine_340_moving
6→hd_engine_360_moving
7→hd_engine_380_moving
其对应如下:
Hd_engine_180
180.0
320.0
Rezone
340.0
360.0
380.0
HD_Engine_360
2.11AppendtheFinalMeshes
Theideaistofinishthemeshmo
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