做帮助上的拓扑优化例子时候出现了问题~~~请教大牛
在做ANSYS 11help中的例子时候出现了问题warning: since RSYS,solu is in effect, the PLNS command will result in a FULL graphics plot
完整的命令流如下：
/TITLE, A 2-D multiple compliance minimization problem subjected to volume constraint
/PREP7
BLC4,0,0,3,1 ! Create solid model (3 x 1 rectangle)
ET,1,82 ! Use 2-D solids. Type 1 is optimized
ET,2,82 ! Type 2 is not optimized.
MP,EX,1,118E9 ! Linear isotropic, material
MP,NUXY,1,0.3
ESIZE,0.05 ! Use a relatively fine mesh density
TYPE,1
AMESH,ALL ! Free, rectangular-element meshing
NSEL,S,LOC,X,0,0.4 ! Select region not to be optimized
ESLN
TYPE,2
EMODIF,ALL ! Define type 2 elements
ALLSEL
NSEL,S,LOC,X,0
D,ALL,ALL,0 ! Fixed at X = 0
NSEL,S,LOC,X,3
D,ALL,ALL,0 ! Fixed at X = 3
FORCE = 1000 ! Value for applied load
NSEL,S,LOC,X,1
NSEL,R,LOC,Y,1
F,ALL,FY,FORCE ! Define first load case
ALLSEL
LSWRITE,1 ! Write first load case
FDEL,ALL
NSEL,S,LOC,X,2
NSEL,R,LOC,Y,0
F,ALL,FY,-FORCE ! Define second load case
ALLSEL
LSWRITE,2 ! Write second load case
FDEL,ALL
TOCOMP,MCOMP,MULTIPLE,2! Define multiple compliance function
! "MCOMP" for topological optimization
TOVAR,MCOMP,OBJ ! Define "MCOMP" as topological objective
TOVAR,VOLUME,CON,,50 ! Define "VOLUME" as topological constraint; 50 percent volume reduction
TOTYPE,OC ! Specify solution approach
TODEF ! Initialize topological opt.
/SHOW,topo,grph ! Put graphics in a file (remove if interactive)
/DSCALE,,OFF
/CONTOUR,,2
RSYS,1
TOLOOP,12,1 ! Perform no more than 12 iterations
FINISH
TOGRAPH,OBJ ! Graph final objective (compliance) history
TOGRAPH,CON ! Graph final constraint (volume) history
TOPRINT,OBJ ! Print final objective (compliance) history
TOPRINT,CON ! Print final constraint (volume) history
*GET,TITER,TOPO,,ITER ! Get iteration counter
*GET,OCMP,TOPO,TITER-1,TOHO! Get final compliance value
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