波浪载荷下海洋平台结构响应

chenzheng050342

各位大侠请帮我看看，为什么我对海洋平台建模，进行模态分析后，再施加波浪载荷，到合并模态求解时老是会出现：No modes have beenexpanded.  No mode combinations are possible.  前面命令流里的PFACT,1,NODE,不是对其有定义了吗？
附一下命令流：
/FILNAME,PLATFORM   
/TITLE,PLATFORM-STUDY   
/PREP7  
!*  
ET,1,PIPE16
!*  
ET,2,BEAM4  
!*  
ET,3,SHELL63
!*  
R,1,1.2,0.03
R,2,0.8,0.02
R,3,0.5,0.02
R,4,0.3,0.02
R,5,0.02,0.0002,0.00045,0.3,0.2
R,6,0.02,0.02,0.02,0.02
MP,EX,1,2.0E11  
MP,NUXY,1,0.3   
MP,DENS,1,7800  
K,1,-10,-7.5,0  
K,2,0,-9.5,0
K,3,10,-7.5,0   
K,4,10,7.5,0
K,5,0,9.5,0
K,6,-10,7.5,0   
K,7,-10,0,0
K,8,-5.588,0,0  
K,9,0,0,0   
K,10,5.588,0,0  
K,11,10,0,0
K,12,-9.454,-3.438,10.91
K,13,-9.454,3.438,10.91
K,14,0,-4.313,11.01
K,15,0,4.313,11.01  
K,16,9.454,-3.438,10.91
K,17,9.454,3.438,10.91  
K,18,-4.75,-7.75,10.53  
K,19,4.75,-7.75,10.53   
K,20,-4.75,7.75,10.53   
K,32,4.75,7.75,10.53
K,21,-9,-6.25,20
K,22,0,-7.75,20
K,23,9,-6.25,20
K,24,9,6.25,20  
K,25,0,7.75,20  
K,26,-9,6.25,20
K,27,-9,0,20
K,28,-4.982,0,20
K,29,0,0,20
K,30,4.982,0,20
K,31,9,0,20
K,41,-8,-5,40   
K,42,0,-6,40
K,43,8,-5,40
K,44,8,5,40
K,45,0,6,40
K,46,-8,5,40
K,47,-8,0,40
K,48,-4.364,0,40
K,49,0,0,40
K,50,4.364,0,40
K,51,8,0,40
K,61,-7,-3.75,60
K,62,0,-4.25,60
K,63,7,-3.75,60
K,64,7,3.75,60  
K,65,0,4.25,60  
K,66,-7,3.75,60
K,68,-3.720,0,60
K,70,3.720,0,60
K,81,-6,-2.5,80
K,82,0,-2.5,80  
K,83,6,-2.5,80  
K,84,6,2.5,80   
K,85,0,2.5,80   
K,86,-6,2.5,80  
K,88,-3,0,80
K,90,3,0,80
K,71,-10.1,-7.625,-2
K,72,0,-9.675,-2
K,73,10.1,-7.625,-2
K,74,10.1,7.625,-2  
K,75,0,9.675,-2
K,76,-10.1,7.625,-2
K,91,-6,-2.5,82
K,92,0,-2.5,82  
K,93,6,-2.5,82  
K,94,6,2.5,82   
K,95,0,2.5,82   
K,96,-6,2.5,82  
K,101,-6,-2.5,90
K,102,0,-2.5,90
K,103,6,-2.5,90
K,104,6,2.5,90  
K,105,0,2.5,90  
K,106,-6,2.5,90
K,107,-8,-4.5,90
K,108,-6,-4.5,90
K,109,0,-4.5,90
K,110,6,-4.5,90
K,111,8,-4.5,90
K,112,-8,0,90   
K,113,-6,0,90   
K,114,0,0,90
K,115,6,0,90
K,116,8,0,90
K,117,-8,-2.5,90
K,118,8,-2.5,90
K,119,-8,2.5,90
K,120,8,2.5,90  
K,121,-8,4.5,90
K,122,-6,4.5,90
K,123,0,4.5,90  
K,124,6,4.5,90  
K,125,8,4.5,90  
K,151,-6,-2.5,98
K,152,0,-2.5,98
K,153,6,-2.5,98
K,154,6,2.5,98  
K,155,0,2.5,98  
K,156,-6,2.5,98
K,157,-9,-5.5,98
K,158,-6,-5.5,98
K,159,0,-5.5,98
K,160,6,-5.5,98
K,161,9,-5.5,98
K,162,-9,0,98   
K,163,-6,0,98   
K,164,0,0,98
K,165,6,0,98
K,166,9,0,98
K,167,-9,-2.5,98
K,168,9,-2.5,98
K,169,-9,2.5,98
K,170,9,2.5,98  
K,171,-9,5.5,98
K,172,-6,5.5,98
K,173,0,5.5,98  
K,174,6,5.5,98  
K,175,9,5.5,98  
L,1,2   
L,2,3   
L,3,11  
L,11,4  
L,4,5   
L,5,6   
L,6,7   
L,7,1   
L,9,2   
L,9,5   
L,8,1   
L,8,2   
L,8,9   
L,8,5   
L,8,6   
L,8,7   
L,10,2  
L,10,3  
L,10,11
L,10,4  
L,10,5  
L,10,9  
L,21,22
L,22,23
L,23,31
L,31,24
L,24,25
L,25,26
L,26,27
L,27,21
L,29,22
L,29,25
L,28,21
L,28,22
L,28,29
L,28,25
L,28,26
L,28,27
L,30,22
L,30,23
L,30,31
L,30,24
L,30,25
L,30,29
L,41,42
L,42,43
L,43,51
L,51,44
L,44,45
L,45,46
L,46,47
L,47,41
L,49,42
L,49,45
L,48,41
L,48,42
L,48,49
L,48,45
L,48,46
L,50,42
L,50,43
L,50,44
L,50,45
L,50,49
L,61,62
L,62,63
L,63,64
L,64,65
L,65,66
L,66,61
L,62,65
L,68,61
L,68,62
L,68,65
L,68,66
L,70,62
L,70,63
L,70,64
L,70,65
L,81,82
L,82,83
L,83,84
L,84,85
L,85,86
L,86,81
L,82,85
L,88,81
L,88,82
L,88,85
L,88,86
L,90,82
L,90,83
L,90,84
L,90,85
L,1,21  
L,21,41
L,41,61
L,61,81
L,6,26  
L,26,46
L,46,66
L,66,86
L,13,6  
L,13,7  
L,13,27
L,13,26
L,12,7  
L,12,1  
L,12,21
L,12,27
L,7,27  
L,27,47
L,26,47
L,21,47
L,47,66
L,47,61
L,61,86
L,2,22  
L,22,42
L,42,62
L,62,82
L,5,25  
L,25,45
L,45,65
L,65,85
L,15,5  
L,15,9  
L,15,29
L,15,25
L,9,29  
L,14,9  
L,14,2  
L,14,22
L,14,29
L,29,49
L,25,49
L,22,49
L,49,65
L,49,62
L,62,85
L,3,23  
L,23,43
L,43,63
L,63,83
L,4,24  
L,24,44
L,44,64
L,64,84
L,17,4  
L,17,11
L,17,31
L,17,24
L,11,31
L,16,11
L,16,3  
L,16,23
L,16,31
L,31,51
L,24,51
L,23,51
L,51,64
L,51,63
L,63,84
L,18,1  
L,18,2  
L,18,22
L,18,21
L,19,2  
L,19,3  
L,19,23
L,19,22
L,21,42
L,23,42
L,42,61
L,42,63
L,62,81
L,62,83
L,20,6  
L,20,5  
L,20,25
L,20,26
L,32,5  
L,32,4  
L,32,24
L,32,25
L,26,45
L,24,45
L,45,66
L,45,64
L,65,86
L,65,84
L,1,71  
L,2,72  
L,3,73  
L,4,74  
L,5,75  
L,6,76  
L,81,91
L,82,92
L,83,93
L,84,94
L,85,95
L,86,96
L,101,102   
L,102,103   
L,103,115   
L,115,104   
L,104,105   
L,105,106   
L,106,113   
L,113,101   
L,107,108   
L,108,109   
L,109,110   
L,110,111   
L,112,113   
L,113,114   
L,114,115   
L,115,116   
L,117,101   
L,103,118   
L,119,106   
L,104,120   
L,121,122   
L,122,123   
L,123,124   
L,124,125   
L,107,117   
L,117,112   
L,112,119   
L,119,121   
L,108,101   
L,106,122   
L,109,102   
L,102,114   
L,114,105   
L,105,123   
L,110,103   
L,104,124   
L,111,118   
L,118,116   
L,116,120   
L,120,125   
L,151,152   
L,152,153   
L,153,165   
L,165,154   
L,154,155   
L,155,156   
L,156,163   
L,163,151   
L,157,158   
L,158,159   
L,159,160   
L,160,161   
L,162,163   
L,163,164   
L,164,165   
L,165,166   
L,167,151   
L,153,168   
L,169,156   
L,154,170   
L,171,172   
L,172,173   
L,173,174   
L,174,175   
L,157,167   
L,167,162   
L,162,169   
L,169,171   
L,158,151   
L,156,172   
L,159,152   
L,152,164   
L,164,155   
L,155,173   
L,160,153   
L,154,174   
L,161,168   
L,168,166   
L,166,170   
L,170,175   
L,91,101
L,101,151   
L,92,102
L,102,152   
L,93,103
L,103,153   
L,94,104
L,104,154   
L,95,105
L,105,155   
L,96,106
L,106,156   
L,91,102
L,102,93
L,94,105
L,105,96
L,91,106
L,95,102
L,93,104
L,151,102   
L,102,153   
L,154,105   
L,105,156   
L,106,151   
L,104,153   
L,102,155   
A,107,108,101,117   
A,108,109,102,101   
A,109,110,103,102   
A,110,111,118,103   
A,117,101,113,112   
A,101,102,114,113   
A,102,103,115,114   
A,103,118,116,115   
A,112,113,106,119   
A,113,114,105,106   
A,114,115,104,105   
A,115,116,120,104   
A,119,106,122,121   
A,106,105,123,122   
A,105,104,124,123   
A,104,120,125,124   
A,157,158,151,167   
A,158,159,152,151   
A,159,160,153,152   
A,160,161,168,153   
A,167,151,163,162   
A,151,152,164,163   
A,152,153,165,164   
A,153,168,166,165   
A,162,163,156,169   
A,163,164,155,156   
A,164,165,154,155   
A,165,166,170,154   
A,169,156,172,171   
A,156,155,173,172   
A,155,154,174,173   
A,154,170,175,174   
! SAVE, PLATFORM,db,
LSEL,S,,,95,102
LSEL,A,,,118,125
LSEL,A,,,141,148
LSEL,A,,,192,203
LATT,1,1,1  
LESIZE,ALL,,,1  
LMESH,ALL   
LSEL,S,,,1,94   
LSEL,A,,,103,117
LSEL,A,,,126,140
LSEL,A,,,149,191
LATT,1,3,1  
LESIZE,ALL,,,1  
LMESH,ALL   
LSEL,S,,,284,295
LATT,1,2,1  
LESIZE,ALL,,,1  
LMESH,ALL   
LSEL,S,,,296,319
LATT,1,4,1  
LESIZE,ALL,,,1  
LMESH,ALL   
LSEL,S,,,192,283
LATT,1,5,2,,,,1
LESIZE,ALL,,,3  
LMESH,ALL   
ASEL,A,,,ALL
AATT,1,6,3  
AMESH,ALL   
! /ESHAPE,1.0
FINISH  
! SAVE, PLATFORM,db,
/SOLU   
!*  
ANTYPE,2
!*  
MSAVE,0
!*  
MODOPT,LANB,6   
EQSLV,SPAR  
MXPAND,0, , ,0  
LUMPM,0
PSTRES,0
!*  
MODOPT,LANB,6,0,0,,OFF  
D,31,ALL
D,32,ALL
D,33,ALL
D,34,ALL
D,35,ALL
D,36,ALL
SOLVE   
FINISH  
! SAVE, PLATFORM,db,
/POST1  
SET,LIST
SET,FIRST   
! PLDISP,0
SET,NEXT
! PLDISP,0
SET,NEXT
! PLDISP,0
SET,NEXT
! PLDISP,0
SET,NEXT
! PLDISP,0
SET,NEXT
! PLDISP,0
FINISH  
! SAVE, PLATFORM,db,
/SOL
ANTYPE,SPECTRUM
SPOPT,PSD,6,0   
PSDUNIT,1,DISP,386.4,   
PSDFRQ,1,,0.0001,0.0318,0.0478,0.064,0.0796
PSDFRQ,1,,0.0955,0.1146,0.1274,0.1592,0.1911
PSDFRQ,1,,0.2229,0.2548,0.3185,0.4777,0.7962
PSDFRQ,1,,1.5924,5,,,   
PSDVAL,1,0.001,0.167,0.868,0.02e10,0.124e10
PSDVAL,1,2.319e10,2.533e10,1.66e10,0.89e10,0.503e10
PSDVAL,1,0.174e10,0.074e10,0.034e10,0.019e10,0.008e10   
PSDVAL,1,0.006e10,0.006e10,,,   
F,5,FY,1,   
F,25,FY,1,  
PFACT,1,NODE,   
PSDRES,DISP,ABS
PSDRES,VELO,ABS
PSDRES,ACEL,ABS
SOLVE   
FINISH  
/SOLUTION   
/SOL
ANTYPE,SPECTRUM
PSDCOM,0.001,6,      到这里SOLVE计算就会出现问题