ANSYS接触滑移分析遇到该错误，求大神指点？

鄙人是菜鸡，用的命令流和GUI交互操作，具体操作指令来自.log文件，请大神见谅，

出现错误如下：

 The L-2 norm of the residual force overflowed.  This may be caused by   

 PRED,ON or birth/dead elements.  Please use PRED,OFF and try again.  

.log中的具体命令为

/PREP7  

!*  

ET,1,SHELL181 

KEYOPT,1,1,0

KEYOPT,1,3,0

KEYOPT,1,8,1

KEYOPT,1,9,0  

!*  

MPTEMP,,,,,,,,  

MPTEMP,1,0  

MPDATA,EX,1,,167000000000   

MPDATA,PRXY,1,,0.28 

MPTEMP,,,,,,,,  

MPTEMP,1,0  

UIMP,1,REFT,,,  

MPDATA,ALPX,1,,3.29e-6  

MPTEMP,,,,,,,,  

MPTEMP,1,0  

MPDATA,EX,2,,60000000000

MPDATA,PRXY,2,,0.17 

MPTEMP,,,,,,,,  

MPTEMP,1,0  

UIMP,2,REFT,,,  

MPDATA,ALPX,2,,0.55e-6  

MPTEMP,,,,,,,,  

MPTEMP,1,0  

MPDATA,EX,3,,2.84e10

MPDATA,PRXY,3,,0.24 

MPTEMP,,,,,,,,  

MPTEMP,1,0  

UIMP,3,REFT,,,  

MPDATA,ALPX,3,,4.8e-6   

!*  

tb,czm,4,1,,bili

tbdata,1,1e10,1e-9,3e8,5e-4,1,1   

!*  

sect,1,shell,,  

secdata, 675e-6,1,0.0,3 

secoffset,TOP   

seccontrol,,,, , , ,

!*  

sect,2,shell,,  

secdata, 1.5e-007,2,0,3 

secdata, 5e-007,1,0,3   

secdata, 1e-006,3,0,3   

secoffset,BOT   

seccontrol,0,0,0, 0, 1, 1, 1

!*  

PCIRC,0.0762, ,0,90,

PCIRC,0.0762, ,0,90,

!*  

sect,2,shell,,  

secdata, 1.5e-007,2,0,3 

secdata, 5e-007,1,0,3   

secdata, 1e-006,3,0,3   

secoffset,BOT   

seccontrol,0,0,0, 0, 1, 1, 1

CM,_Y,AREA  

ASEL, , , ,       1 

CM,_Y1,AREA 

CMSEL,S,_Y  

!*  

CMSEL,S,_Y1 

AATT,       1, ,   1,       0,   1  

CMSEL,S,_Y  

CMDELE,_Y   

CMDELE,_Y1  

!*  

CM,_Y,AREA  

ASEL, , , ,       2 

CM,_Y1,AREA 

CMSEL,S,_Y  

!*  

CMSEL,S,_Y1 

AATT,       1, ,   1,       0,   2  

CMSEL,S,_Y  

CMDELE,_Y   

CMDELE,_Y1  

!*  

!*  

LESIZE,ALL, , ,20, ,1, , ,1,

MSHAPE,0,2D 

MSHKEY,1

!*  

FLST,5,2,5,ORDE,2   

FITEM,5,1   

FITEM,5,-2  

CM,_Y,AREA  

ASEL, , , ,P51X 

CM,_Y1,AREA 

CHKMSH,'AREA'   

CMSEL,S,_Y  

!*  

AMESH,_Y1   

!*  

CMDELE,_Y   

CMDELE,_Y1  

CMDELE,_Y2  

!*  

/UI,MESH,OFF

SAVE

!*  

!*  

/COM, CONTACT PAIR CREATION - START 

CM,_NODECM,NODE 

CM,_ELEMCM,ELEM 

CM,_KPCM,KP 

CM,_LINECM,LINE 

CM,_AREACM,AREA 

CM,_VOLUCM,VOLU 

/GSAV,cwz,gsav,,temp

inistate,set,mat,3  

inistate,defi,,,,,1e9,1e9   

MP,MU,1,

MAT,4   

R,3 

REAL,3  

ET,2,170

ET,3,174

KEYOPT,3,9,0

KEYOPT,3,10,2   

R,3,

RMORE,  

RMORE,,0

RMORE,0 

! Generate the target surface   

ASEL,S,,,1  

CM,_TARGET,AREA 

TYPE,2  

NSLA,S,1

ESLN,S,0

ESLL,U  

ESEL,U,ENAME,,188,189   

NSLE,A,CT2  

ESURF   

CMSEL,S,_ELEMCM 

! Generate the contact surface  

ASEL,S,,,2  

CM,_CONTACT,AREA

TYPE,3  

NSLA,S,1

ESLN,S,0

NSLE,A,CT2 ! CZMESH patch (fsk qt-40109 8/2008) 

ESURF   

*SET,_REALID,3  

ALLSEL  

ESEL,ALL

ESEL,S,TYPE,,2  

ESEL,A,TYPE,,3  

ESEL,R,REAL,,3  

/PSYMB,ESYS,1   

/PNUM,TYPE,1

/NUM,1  

EPLOT   

! Reverse target normals

ESEL,NONE   

ESEL,A,TYPE,,2  

ESEL,R,REAL,,3  

ESURF,,REVERSE  

ESEL,ALL

ESEL,S,TYPE,,2  

ESEL,A,TYPE,,3  

ESEL,R,REAL,,3  

/PSYMB,ESYS,1   

/PNUM,TYPE,1

/NUM,1  

EPLOT   

!   

ESEL,ALL

ESEL,S,TYPE,,2  

ESEL,A,TYPE,,3  

ESEL,R,REAL,,3  

CMSEL,A,_NODECM 

CMDEL,_NODECM   

CMSEL,A,_ELEMCM 

CMDEL,_ELEMCM   

CMSEL,S,_KPCM   

CMDEL,_KPCM 

CMSEL,S,_LINECM 

CMDEL,_LINECM   

CMSEL,S,_AREACM 

CMDEL,_AREACM   

CMSEL,S,_VOLUCM 

CMDEL,_VOLUCM   

/GRES,cwz,gsav  

CMDEL,_TARGET   

CMDEL,_CONTACT  

/COM, CONTACT PAIR CREATION - END   

/MREP,EPLOT 

!*  

KEYOPT,3,1,0

KEYOPT,3,2,0

KEYOPT,3,4,0

KEYOPT,3,5,2

KEYOPT,3,6,0

KEYOPT,3,7,1

KEYOPT,3,8,0

KEYOPT,3,9,0

KEYOPT,3,10,0   

KEYOPT,3,11,1   

KEYOPT,3,12,2   

KEYOPT,3,14,0   

KEYOPT,3,15,0   

KEYOPT,3,16,0   

!*  

R,3,0,0,1, 0.001,0,0

RMORE,0,0,0, 0,0,0  

RMORE,0,,, ,,   

RMORE,,,0, 0,,  

RMORE,,,,,, 

RMORE,,,,,  

!* 

FLST,2,4,4,ORDE,4   

FITEM,2,2   

FITEM,2,-3  

FITEM,2,5   

FITEM,2,-6  

DL,P51X, ,SYMM  

FLST,2,2,1,ORDE,2   

FITEM,2,22  

FITEM,2,353 

!*  

/GO 

D,P51X, , , , , ,ALL, , , , ,   

FINISH  

/SOL

SAVE

ALLSEL,ALL  

!*  

!*  

NLGEOM,1

NROPT,FULL, ,   

STAOPT,DEFA 

LUMPM,0 

EQSLV, , ,0, ,DELE  

MSAVE,0 

PCGOPT,0, ,AUTO, , ,AUTO

PIVCHECK,0  

PSTRESS,0   

TOFFST,0,   

!*  

!*  

TIME,0.1

AUTOTS,1

NSUBST,100,1e6,10,1

KBC,0   

!*  

TSRES,ERASE 

!*  

NLGEOM,1

NROPT,FULL, ,OFF

STAOPT,DEFA 

LUMPM,0 

EQSLV, , ,0, ,DELE  

MSAVE,0 

PCGOPT,0, ,AUTO, , ,AUTO

PIVCHECK,1  

PSTRESS,0   

TOFFST,0,   

!*  

NEQIT,25,   

!* 

PRED,OFF 

LNSRCH,1

SAVE

求各位大神指点错误出现原因