ansys模态分析问题，求指教不甚感激
ansys警告提示：The number of modes expanded 3 (MXPAND command) does not match thenumber of modes extracted 10 (MODOPT command).The element results
will not be written to the mode file.For more efficient calculation
of element results in the expansion pass of any downstream mode
superposition analyses, expand all modes.
APDL命令如下：
/CLEAR
/FILNAME,example12.3,1
/TITLE,SINGLE-POINT RESPONSE analysis
/PREP7
ET,1,SHELL181
ET,2,BEAM188
KEYOPT,1,3,2
KEYOPT,2,3,3
MP,EX,1,2E11
MP,PRXY,1,0.3
MP,DENS,1,7800
SECTYPE,1,SHELL
!SECDATA,0.5,1,0,5,layer1
SECDATA,0.3
SECTYPE,2,BEAM,RECT
SECDATA,0.004,0.004
K,1,
K,2,0,0.6,0
K,3,0,1.2,0
K,4,0,1.8,0
LSTR,1,2
LSTR,2,3
LSTR,3,4
!LATT,MAT,REAL,TYPE,--,KB,KE,SECNUM
LATT,1,,2,,,,2
LESIZE,ALL,,,6
LMESH,ALL
!LGEN,ITIME,NL1,NL2,NINC,DX,DY,DZ,KINC,NOELEM,IMOVE
LGEN,2,ALL,,,,,0.5
LSEL,ALL
LGEN,3,ALL,,,0.5
ALLSEL,ALL
A,2,6,14,10
LATT,1,,1,,,,1
LSEL,S,LINE,,20,22,2
LESIZE,ALL,,,5
MSHKEY,1!映射划分
AMESH,1
AGEN,2,1,,,0.5
AGEN,3,1,2,,,0.6
ALLSEL,ALL
NUMMRG,ALL
NUMCMP,ALL
/SOLU
NSEL,S,LOC,Y,0
D,ALL,ALL,0
ANTYPE,MODAL
MODOPT,LANPCG,10,,1000
ALLSEL,ALL
SOLVE
FINISH
/SOLU
ANTYPE,SPECTR
!SPOPT,Sptype,NMODE,Elcalc
SPOPT,SPRS,10,YES
SVTYP,3,1
SED,,,1
FREQ,0.5,1,2.4,3.8,17,18,20,32
SV,0.1,1E-3,0.5E-3,0.9E-3,0.8E-3,1.2E-3,0.75E-3,0.86E-3,0.2E-3
ALLSEL,ALL
SOLVE
FINISH
SAVE
/SOLU
ANTYPE,MODAL
EXPASS,ON
MXPAND,10,,,YES,0.005
SOLVE
FINISH
/SOLU
ANTYPE,SPECTR
SPOPT,SPRS,10
SRSS,0.15,DISP
SOLVE
FINISH
我也遇到了一样的问题。。。你是怎么解决的呢？ 加Q讨论一下吧 583719700
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