ansys及一些常用命令：(編輯修改稿)
2024-09-17 01:08 本頁面
【文章內(nèi)容簡介】 (ANGX) K,X,Y *GET,KMAX,KP,NUM,MAX L,KMAX1,KMAX *ENDDO *ENDIF *DO,I,1,N1 ANGX=I*THETA X=A*COS(ANGX) Y=B*SIN(ANGX) K,X,Y *GET,KMAX,KP,NUM,MAX L,KMAX1,KMAX *ENDDO *IF,A,LT,B,THEN M=LOG(B/A+1) ANGM=THETA *DO,I,1,M ANGM=ANGM/2 ANGX=ANGX+ANGM X=A*COS(ANGX) Y=B*SIN(ANGX) K,X,Y *GET,KMAX,KP,NUM,MAX L,KMAX1,KMAX *ENDDO *ENDIF ANGX=N*THETA X=A*COS(ANGX) Y=B*SIN(ANGX) K,X,Y *GET,KMAX,KP,NUM,MAX L,KMAX1,KMAX L,KMAX,KMIN *GET,LMAX,LINE,NUM,MAX NUMMRG,ALL LSEL,S,LINE,LMIN,LMAX AL,ALL LSEL,ALL A Mesh Refinement Example /PREP7 ET,1,42 R,1,.25 MP,EX,1,1e7 ELLIPTQ,.05,.2,9 /pnum,kp,1 RECTNG,3,2 /pnum,area,1 aplot asba,2,1 ksel,s,kp,11,13 kesize,all,.005 ksel,s,kp,9,10 kesize,all,.001 ksel,all kesize,2,.02 ksel,s,kp,15,17 kesize,all,.2 ksel,all amesh,3 save FINISH /SOLU lsel,s,line,18,19 dl,all,3,symm lsel,all sfl,15,pres,100 solve FINISH /POST1 PLNSOL,S,EQV Graphics Display The first mand in an interactive ANSYS run, /SHOW specifies the graphics device driver. The most mon drivers at NIST are: X11,X11C, etc Xwindows based 3D For local run only 3D has local graphics functions that work only the workstation actually running the ANSYS program. Xwindows allow users to run ANSYS on a network connected remote machine and to instantaneously display the results on a local workstation or a Xterminal. ANSYS has two types of mands that control a display: Graphics action mands: xPLOT displays elements/volumes/areas/lines x = E,V,A,L,K,N /keypoints/nodes,respectively PLNSOL plots nodal solution PLESOL plots element solution etc. Graphics specification mands: /PNUM,label,key specifies if numbers of label are shown /PBC,item,ponent,key specifies if constraints or loads are shown /PSYMB,label,key specifies if symbols(CS/LDIR etc) are shown /EDGE,wn,key,angle specifies if edges are shown etc. Selective displays can be made with the nodes and elements SELECT utilities ASEL, NSLA, NSEL, ESEL, etc. If a selective mand is issued before the PLNSOL mand, only the results on the selected elements will be displayed. The following ands are the frquently used graphics mands: PLNSOL,item,p Displays the solution results as continuous contours PLDISP,kund,kscal Displays the displaced structure /WINDOW,wn,xmin,xmax, Defines window size on screen ymin,ymax,ncopy /TYPE,wn,type Defines type of display /FOCUS,wn,xf,yf,zf,ktrans Defines the location of object to be at the center of the window /DIST,wn,dval,kfact Defines the viewing distance for magnification and perspective /VIEW,wn,xv,yv,zv Defines the viewing direction of the ojbect Grph menu button Interactive graphics for Zoom, Rotation, and Translation Use of Generic Utilities In Revision , many utility mands are generic and consistent for all disciplines, and they are available throughout the program. For example, select logic and ponents are available anywhere in the program, at anytime, and button menus are also available. The type of selection (reselect, unselect, additional select, all, etc.) has been moved to the first field on the mand, and there are more fields for the basis of selection. NSEL ESEL KSEL LSEL ASEL VSEL CMSEL Exiting the PREP7 preprocess FINISH mand at the end of PREP7 modeling does not save the database。 issue SAVE mand to save the database before exiting the process. ANSYS Example 1 Thermal Modeling of a Cryogenic Radiometer Given: A radiometer at cryogenic temperature is applied with a constatnt heat flux at given nodes on the surface of a 2layer cone whose base is welded to a cylindrical tube. The radiometer is modeled with axial symmetry. ANSYS Program for Example 1 /FILN
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