命令流用NESL选择节点！！出现问题
*** WARNING *** CP = 1.344 TIME= 10:20:37For item= LOC, the component ( 150+) is invalid.
The NSEL command is ignored.
提示警告！！！我这个是什么问题？？求指教！！！
j=0
i=0
*DO,i,0,5,1
tim=tim+3
TIME,tim
!判断移动方向
*IF,a,EQ,0,THEN
j=j+1
*ELSE
j=j-1
*ENDIF
!施加螺母产生的热流密度
NSEL,S,LOC,Y,0
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Z,0,20
SF,ALL,HFLUX,15
NSEL,S,LOC,Y,20
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Z,0,20
SF,ALL,HFLUX,15
NSEL,S,LOC,Z,0
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Y,0,20
SF,ALL,HFLUX,15
NSEL,S,LOC,Z,20
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Y,0,20
SF,ALL,HFLUX,15
ALLS
NSUBST,5
OUTRES,ALL,ALL
EQSLV,JCG
!选择求解器
SOLVE
!删除上面施加的载荷
NSEL,S,LOC,Y,0
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Z,0,20
SFDELE,ALL,HFLUX
NSEL,S,LOC,Y,20
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Z,0,20
SFDELE,ALL,HFLUX
NSEL,S,LOC,Z,0
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Y,0,20
SFDELE,ALL,HFLUX
NSEL,S,LOC,Z,20
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Y,0,20
SFDELE,ALL,HFLUX
!施加这部分区域的对流载荷
NSEL,S,LOC,Y,0
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Z,0,20
SF,ALL,CONV,130,30
NSEL,S,LOC,Y,20
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Z,0,20
SF,ALL,CONV,130,30
NSEL,S,LOC,Z,0
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Y,0,20
SF,ALL,CONV,130,30
NSEL,S,LOC,Z,20
NSEL,R,LOC,150+j*50,250+j*50
NSEL,R,LOC,Y,0,20
SF,ALL,CONV,130,30
ALLS
!判断是否转向
*IF,250+j*50,GE,850,THEN
j=12
a=1
*ELSEIF,150+j*50,LE,150,THEN
j=0
a=0
*ENDIF
*ENDDO
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