询问结构优化的问题

sunning

我在做优化的时候跳出来错误
Sample are not independent .check for more than one sample
不知道这个错误是什么原因，请高手指点。下边是我的程序
优化文件 hexplateopt.inp
/OPT
OPCLR
FINI
/CLEAR,NOSTART
/INPUT,HEXPLATE,INP
/OPT
OPANL,HEXPLATE,INP
OPVAR,T1,DV,20.5,40
OPVAR,FIL,DV,5,15
OPVAR,SMAX,SV,,150
OPVAR,VTOT,OBJ,1.0
OPKEEP,ON
OPTYPE,SUBP
OPSUBP,30
OPEXEC
OPLIST,ALL,,1
模型分析文件 hexplate.inp
FINISH
/CLEAR
/COM,  STRUCTURAL
/FILNAME,Hexagon_plate !定义文件名
/REPLOT
*AFUN,DEG !将系统角度改为度
!参数变量设定
INRAD=200*COS(30)-20
T1=30
FIL=10


/PREP7
ET,1,PLANE82  !定义单元类型PLANE82
KEYOPT,1,3,3
KEYOPT,1,5,0
KEYOPT,1,6,0
R,1,10        !定义实常数R=10
MP,PRXY,1,0.3  !定义泊松比
MP,EX,1,2.07E5  !定义弹性模量

!画六角钢盘
CYL4,-200,0,INRAD,-30,INRAD+T1,30
CYL4,200*COS(60),200*SIN(60),INRAD,-90,inrad+t1,-150
CYL4,200*COS(60),200*SIN(-60),INRAD,90,inrad+t1,150
AADD,ALL
ADELE,4
NUMMRG,ALL, , , ,LOW
/NUMBER,0
/PNUM,ELEM,0
LPLOT
SAVE
LFILLT,22,23,FIL, ,
LFILLT,22,24,FIL, ,
LFILLT,24,23,FIL, ,
WPROT,,90,
LSBW,ALL
/REP,FAST
WPROT,,,60
LSBW,ALL
SAVE
CSYS,1
LSEL,S,LOC,Y,60,360
LDELE,ALL,,,1
CSYS,0
ALLSEL,ALL
LPLOT
L,23,25
L,27,28
LCOMB,9,21,0
NUMMRG,ALL,,,,LOW
NUMCMP,ALL
/REPLOT
SAVE
AL,ALL

!开始划分网格
SMRTSIZE,3  
MSHKEY,0
ASEL,,,,1
AMESH,ALL

/SOLU
ANTYPE,STATIC
DL,1, ,SYMM
DL,2, ,SYMM
SFL,4,PRES,-50
SAVE
SOLVE
/POST1
PLNSOL,S,EQV,2,1.0
/EXPAND,6,POLAR,HALF,0,60,0, ,RECT,FULL,,,, ,RECT,FULL,,,,  
/REPLOT
SAVE

!获得最大等效应力
/EXPAND
NSORT,S,EQV
*GET,SMAX,SORT,,MAX
ETABLE,EVOL,VOLU
SSUM
*GET,VTOT,SSUM,,ITEM,EVOL
FINISH
SAVE
高手帮忙看一下啊

sunning

怎么都没人回应？平时都很积极，怎么这下不行了啊

jli

建议你到优化和可靠性模块讨论