教你如何设定ANSYS路径

-.z.关于ANSYS路径一、看一下GUI，有个感性认识注意：下表给出的是路径的根本要素。路径是通过point来定义的，这些points可以通过拾取节点或pionts在工作面上的坐标或points在总体直角坐标系中的坐标来定义。在建立模型的时候，不同节点可能属于不同的坐标系。通过pionts在工作面上的坐标来指定points〔这些points可以不在模型上〕通过points在总体直角坐标系中的坐标来定义points二、例子――使用路径PathName:Eightcharacter(ma*imum)nameassignedbytheuser.DefiningPoints:Thesearepointsinspaceornodes.Thepathe*istsaslinesegmentsbetweenthesepoints.Youcanhaveupto1000ofthese.InterpolationPoints:ANSYScreatesinternalpointsevenlyspacedalongeachlinesegmentinthepath.Itinterpolatesthedatayouaskforatthesepoints.PathItems:Thesearethevaluesinterpolatedfromthemodelthatarestoredalongthepath.Eachpatheswithfourdefaultitems:*G,YG,ZG,andS.Thefirstthreearethe*,Y,Zpositionofeachinterpolationpointandthedistanceofthepointalongthepath,S.TheuserdefinesuptoPATH,路径的名字,用于定义路径的point的个数〔默认为2个〕,数据集数dataset〔默认为4个，*,y,z坐标，距离S〕默认是30个,相邻两个用于定义路径的point之间划分分段数，默认分为20份，没有上限。path,e*mp1,2,8,20PPATH,P(鼠标拾取)/路径点号〔pointnumber〕,节点号〔如果节点号指定的话，后面的通过point坐标将被忽略,总体直角坐标系下point的*坐标,point的y坐标,point的z坐标,在前后points之间生成internalpoints时要用的坐标系〔如果这个地方什么也不填，将会用当前活动坐标系；如果前后两点的坐标系不同，将会用后面一点的坐标系〕ppath,1,,0,0,.251号point在总体直角坐标系下的坐标；ppath,2,,0,0,1.252号point在总体直角坐标系下的坐标；1、2point间的InterpolationPoints生成用的是默认的当前活动坐标系PDEF,最多8个字符的PathItemslabel,Items,p,对单元结果是否进展单元间的平均处理〔默认要作平均处理〕pdef,u*,u,*pdef,uy,u,ypdef,uz,u,zpdef,usum,u,sum/yrange,-4,12plpath,u*,uy,uz,usum三、其他的一些常用的有关路径的命令PATHThisisthebigmandthatsetsupapath.AlsouseitasPATH,nametochangetheactivepath.PPATHDefinesthepointsforthepath.PMAPUsedtodefinehowtheinterpolationpointsaredistributed.Bydefaulttheyareeven,butwiththismandyoucanputrefinementattheendsofeachlinesegmentorforceapointatadiscontinuity.(Accuratedivisns)PDEFDoestheinterpolationfromthemodelofsolutionvalues.PVECTDoestheinterpolationfromthemodelofgeometryvaluessuchasthetangent,normal,andradiusfromtheoriginalongthepath.Usedtochangetheactivepath.PVECT,Oper,Lab*R,LabYR,LabZRInterpolatesasetofitemsontoapath.OperValidoperationsforgeometryoperationsalongapathare:NORM

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DefinesaunitnormalvectorateachinterpolationpointinthedirectionofthecrossproductofthetangenttothepathandtheactiveZa*is.Resultingvectorponentsareintheactivecoordinatesystem(whichmustbeCartesian).TANG

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Definesaunitvectortangenttothepathateachinterpolationpoint.Vectorponentsareintheactivecoordinatesystem(whichmustbeCartesian).RADI

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Definesthepositionvectorofeachinterpolationpointofthepathfromthecenteroftheactivecoordinatesystem(whichmustbeCartesian).Lab*RLabel(8charactersma*imum)assignedto*-ponentoftheresultingvector.LabYRLabel(8charactersma*imum)assignedtoY-ponentoftheresultingvector.LabZRLabel(8charactersma*imum)assignedtoZ-ponentoftheresultingvector.PADELEUsedtodeletepaths.PADELEdeletesthecurrentpath,PADELE,ALLdeletesallofthemandPADELE,namedeletesthepath搉ame"PRANGEUsedtospecifywhatisactuallyplottedorlisted.PAGET

PAPUT(PathArray)Usedtowriteandreadpathinformationfromarrayvariables.ThisishowyougetyourpathinfointoAPDL.PASAVE

PARESUPSEL(pathselect)Pathinformationdoesnotgetstoredinthe*.dbor*.rst.Ifyouwanttosaveyourdefinitions,thenusethemandstowriteandreadthem.UsePSELtodeterminewhatpathsgetwrittenbeforeyouissuethePASAVEmand.PCALCYoucanusethismandtocreatenewpathitemsbydoingmathoperationsone*istingitems.Thisnotonlyincludesyourstandardadd/sub/mult/div/e*p/sin/cos/asin/acos/log,butalsotheabilitytofindthederivativesandintegrals!PLPATHPlotspathitemsonanANSYSgraph.PLAGMDisplayspathitemsasaribbonplot.PRPATHPrintspathitems.PCROSS

PDOTVectoroperations.PLSECT

PRSECTThisisusedtolinearizestressesanddisplaytheresultingvalues.Structuraltypeslovethismand./PBC,PATH,1Usethisvariationofthe/PBCmandtoviewyourpathsinyourplotsofnodes,elementsandresults.四、路径的其他一些妙用和注意利用路径来得到空间任一点的应力值path,pp,2,5,1ppath,1,,0,0,.35ppath,2,,0,0,.35!注意这两点是重合的，呵呵〔0，0，0.35〕pdef,sig1,s,1*get,s_z_p35,path,,last,sig1*m