ANSYS软件APDL命令流建模的体会Word下载.docx

ANSYS软件APDL命令流建模的体会Word下载.docx

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va--由面建立体

lsel---在很多很多线中选择你需要的目标线，数量可以无限多……

asel---在很多很多面中选择你需要的目标面，数量也可以无限多……

vsel---在很多很多体中选择你需要的目标体，数量也可以无限多……

latt----给选中的线按材料编号赋属性（前提是首先已定义好材料）

aatt---给选中的面按材料编号赋属性

vatt-----给选中的体按材料编号赋属性

acel---按坐标轴赋体积力，

lmesh，amesh，vmesh---对线、面、体进行剖分

d---在节点上加约束边界

dl---在线上加载约束边界

da----在面上加载约束边界

2、以上只是列出了常见的几个命令，但是ansys提供的命令是很多的，我们不可能都记得，计算记得

，也不知道其有关参数是如何定义的，那不要紧，我们可以与界面操作结合起来学习。

我们先利用界面操

作实现，然后在保存路径里面找到文件“file.log”，在该文件里有该操作等价的apdl命令，那以后我们

就可以使用了。

3、复合命令，很多命令是复合命令，通过几个命令的组合以实现一定的目标，如FITEM、FLST等。

这

里不予以详述，大家可在学习中慢慢体会。

4、ansys提供的apdl语言可像fortain、c语言一样，可以编程，有条件语句、逻辑语句、文件读写等

，但是这些语句语法有个特点，就是在相应的语句前要加“*”，以示其与以上apdl命令的区别。

以上只是一点小小的总结，希望对大家有帮助。

K,NPT,X,Y,Z

Definesakeypoint.

Npt:

Referencenumberforkeypoint.Ifzero,thelowestavailablenumberisassigned

X,y,z:

Keypointlocationintheactivecoordinatesystem（maybeR,θ,ZorR,θ,Φ）.IfX=P,graphicalpickingisenabledandallotherfields（includingNPT）areignored（validonlyintheGUI）.

A,P1,P2,P3,P4,P5,P6,P7,P8,P9,P10,P11,P12,P13,P14,P15,P16,P17,P18

Definesanareabyconnectingkeypoints.

P1,P2,P3,...,P18Listofkeypointsdefiningthearea（18maximumifusingkeyboardentry）.Atleast3keypointsmustbeentered.IfP1=P,graphicalpickingisenabledandallremainingargumentsareignored（validonlyintheGUI）.

L,P1,P2,NDIV,SPACE,XV1,YV1,ZV1,XV2,YV2,ZV2

Definesalinebetweentwokeypoints.

NDIV：

Numberofelementdivisionswithinthisline.Normallythisfieldisnotused;

specifyingdivisionswithLESIZE,etc.isrecommended.

SPACE：

Spacingratio.Normallythisfieldisnotused,asspecifyingspacingratioswiththeLESIZEcommandisrecommended.Ifpositive,SPACEisthenominalratioofthelastdivisionsize（atP2）tothefirstdivisionsize（atP1）.Iftheratioisgreaterthan1,thedivisionsizesincreasefromP1toP2,andiflessthan1,theydecrease.IfSPACEisnegative,then|SPACE|isthenominalratioofthecenterdivisionsizetothoseattheends.

XV1,YV1,ZV1：

Location（intheactivecoordinatesystem）oftheheadofthe"

slopevector"

correspondingtotheslopeattheP1endoftheline.Thetailofthevectorisattheoriginofthecoordinatesystem.

XV2,YV2,ZV2：

Locationoftheheadofthe"

correspondingtotheslopeattheP2endoftheline.

AL,L1,L2,L3,L4,L5,L6,L7,L8,L9,L10

Generatesanareaboundedbypreviouslydefinedlines.

N,NODE,X,Y,Z,THXY,THYZ,THZX

Definesanode.

NODE：

Nodenumbertobeassigned.Apreviouslydefinednodeofthesamenumberwillberedefined.Defaultstothemaximumnodenumberused+1.

FILL,NODE1,NODE2,NFILL,NSTRT,NINC,ITIME,INC,SPACE

Generatesalineofnodesbetweentwoexistingnodes.

ITIME,INC：

Dofill-inoperationatotalofITIMEs,incrementingNODE1,NODE2andNSTRTbyINCeachtimeafterthefirst.ITIMEandINCbothdefaultto1.

NGEN,ITIME,INC,NODE1,NODE2,NINC,DX,DY,DZ,SPACE（类似：

Agen）

Generatesadditionalnodesfromapatternofnodes.

DothisgenerationoperationatotalofITIMEtimes（包含现有的自身）,incrementingallnodesinthegivenpatternbyINCeachtimeafterthefirst.ITIMEmustbe>

1forgenerationtooccur.

NODE1,NODE2,NINC：

GeneratenodesfromthepatternofnodesbeginningwithNODE1toNODE2（defaultstoNODE1）instepsofNINC（defaultsto1）.IfNODE1=ALL,NODE2andNINCareignoredandthepatternisallselectednodes[NSEL].IfNODE1=P,graphicalpickingisenabledandallremainingcommandfieldsareignored（validonlyintheGUI）.AcomponentnamemayalsobesubstitutedforNODE1（NODE2andNINCareignored）.

DX,DY,DZ：

Nodelocationincrementsintheactivecoordinatesystem（DR,Dθ,DZforcylindrical,DR,Dθ,DΦforsphericalortoroidal）.

E,I,J,K,L,M,N,O,P

Definesanelementbynodeconnectivity.

I：

Numberofnodeassignedtofirstnodalposition（nodeI）.IfI=P,graphicalpickingisenabledandallremainingcommandfieldsareignored（validonlyintheGUI）.

J,K,L,M,N,O,P：

Numberassignedtosecond（nodeJ）througheighth（nodeP）nodalposition,ifany.

EGEN,ITIME,NINC,IEL1,IEL2,IEINC,MINC,TINC,RINC,CINC,SINC,DX,DY,DZ

Generateselementsfromanexistingpattern.

ITIME,NINC:

DothisgenerationoperationatotalofITIMEs,incrementingallnodesinthegivenpatternbyNINCeachtimeafterthefirst.ITIMEmustbe>

1ifgenerationistooccur.NINCmaybepositive,zero,ornegative.IfDX,DY,and/orDZisspecified,NINCshouldbesetsoanyexistingnodes（asonNGEN）arenotoverwritten.

IEL1,IEL2,IEINC:

GenerateelementsfromselectedpatternbeginningwithIEL1toIEL2（defaultstoIEL1）instepsofIEINC（defaultsto1）.IfIEL1isnegative,IEL2andIEINCareignoredandthelast|IEL1|elements（insequencebackwardfromthemaximumelementnumber）areusedasthepatterntoberepeated.IfIEL1=ALL,IEL2andIEINCareignoredanduseallselectedelements[ESEL]aspatterntoberepeated.IfP1=P,graphicalpickingisenabledandallremainingcommandfieldsareignored（validonlyintheGUI）.AcomponentnamemayalsobesubstitutedforIEL1（IEL2andINCareignored）.

MINC:

IncrementmaterialnumberofallelementsinthegivenpatternbyMINCeachtimeafterthefirst.

TINC:

IncrementtypenumberbyTINC.

RINC:

IncrementrealconstanttablenumberbyRINC.

CINC:

IncrementelementcoordinatesystemnumberbyCINC.

SINC:

IncrementsectionIDnumberbySINC.

DX,DY,DZ:

Definenodesthatdonotalreadyexistbutareneededbygeneratedelements（asthoughtheNGEN,ITIME,INC,NODE1,,,DX,DY,DZwereissuedbeforeEGEN）.Zeroisavalidvalue.Ifblank,DX,DY,andDZareignored.

Note:

Apatternmayconsistofanynumberofpreviouslydefinedelements.TheMAT,TYPE,REAL,ESYS,andSECNUMnumbersofthenewelementsarebasedupontheelementsinthepatternandnotuponthecurrentspecificationsettings.

EDELE,IEL1,IEL2,INC

Deletesselectedelementsfromthemodel.

IEL1,IEL2,INC:

DeleteelementsfromIEL1toIEL2（defaultstoIEL1）instepsofINC（defaultsto1）.IfIEL1=ALL,IEL2andINCareignoredandallselectedelements[ESEL]aredeleted.IfIEL1=P,graphicalpickingisenabledandallremainingcommandfieldsareignored（validonlyintheGUI）.AcomponentnamemayalsobesubstitutedforIEL1（IEL2andINCareignored）.

/ESHAPE,SCALE,KEY（ 

显示由实常数或截面定义所确定的线或面（壳体）单元）

Displayselementswithshapesdeterminedfromtherealconstantsorsectiondefinition.

SCALEScalingfactor:

0

— 

Usesimpledisplayoflineandareaelements.Thisvalueisthedefault.

1

Userealconstantsorsectiondefinitiontoformasolidshapedisplayoftheapplicableelements.

FAC

Multiplycertainrealconstants,suchasthickness,byFAC（whereFAC>

0.01）andusethemtoformasolidshapedisplayofelements.

KEYCurrentshellthicknesskey:

Usecurrentthicknessinthedisplacedsolidshapedisplayofshellelements（validforSHELL181,SHELL208,SHELL209,andSHELL281）.Thisvalueisthedefault.

Useinitialthicknessinthedisplacedsolidshapedisplayofshellelements.

ET,ITYPE,Ename,KOP1,KOP2,KOP3,KOP4,KOP5,KOP6,INOPR

Definesalocalelementtypefromtheelementlibrary.

ITYPE：

Arbitrarylocalelementtypenumber.Defaultsto1+currentmaximum.

Ename:

Elementname（ornumber）asgivenintheelementlibraryinChapter4oftheElementReference.Thenameconsistsofacategoryprefixandauniquenumber,suchasBEAM3.Thecategoryprefixofthename（BEAMfortheexample）maybeomittedbutisdisplayeduponoutputforclarity.IfEname=0,theelementisdefinedasanullelement.

KOP1,...,KOP6：

KEYOPTvalues（1through6）forthiselement,asdescribedintheElementReference.

INOPR：

If1,suppressallelementsolutionprintoutforthiselementtype.

R,NSET,R1,R2,R3,R4,R5,R6

Definestheelementrealconstants.

NSET:

Setidentificationnumber（arbitrary）.Ifsameasaprevioussetnumber,setisredefined.Setnumberrelatestothatdefinedwiththeelement[REAL].NotethattheGUIautomaticallysetsthisvalue.

R1,R2,R3,...,R6:

Realconstantvalues（interpretedasarea,momentofinertia,thickness,etc.,asrequiredfortheparticularelementtypeusingthisset）,ortablenamesfortabularinputofboundaryconditions.UseRMOREcommandifmorethansixrealconstantspersetaretobeinput.

MP,Lab,MAT,C0,C1,C2,C3,C4

Definesalinearmaterialpropertyasaconstantorafunctionoftemperature.

Lab:

Validmaterialpropertylabel.Applicablelabelsarelistedunder"

MaterialProperties"

intheinputtableforeachelementtypeintheElementReference.SeeLinearMaterialPropertiesoftheElementReferenceformorecompletepropertylabeldefinitions:

EX

Elasticmoduli（alsoEY,EZ）.

ALPX

Secantcoefficientsofthermalexpansion（alsoALPY,ALPZ）.

CTEX

Instantaneouscoefficientsofthermalexpansion（alsoCTEY,CTEZ）.

THSX

Thermalstrain（alsoTHSY,THSZ）.

REFT

Referencetemperature.Mustbedefinedasaconstant;

C1throughC4areignored.

PRXY

MajorPoisson'

sratios（alsoPRYZ,PRXZ）.

NUXY

MinorPoisson'

sratios（alsoNUYZ,NUXZ）.

GXY

Shearmoduli（alsoGYZ,GXZ）.

DAMP

Kmatrixmultiplierfordamping.

Note:

Ifusedinanexplicitd