【求助】ANSYS运行后力无效

有高手帮我看一下这是什么原因么~？
附上位移控制命令流：
!第1荷载步
kD,1,ux,0
TIME,1
AUTOTS,0
NSUBST,1, , ,1
KBC,0
LSWRITE,01,
!第1荷载步
kD,1,ux,0.003
TIME,3
AUTOTS,0
NSUBST,10, , ,1
KBC,0
LSWRITE,02,
!第2荷载步
kD,1,ux,0.006
TIME,5
AUTOTS,0
NSUBST,10, , ,1
KBC,0
LSWRITE,03,
!第3荷载步
kD,1,ux,0.009
TIME,7
AUTOTS,0
NSUBST,10, , ,1
KBC,0
LSWRITE,04,
!求解
FINISH
/SOLU
LSSOLVE,1,4,1,
!画出荷载位移曲线
FINISH
/POST26
NSOL,2,1,U,x,
RFORCE,3,1,F,x,
xVAR,3