ansys 動力時程分析收斂問題？ 60
做管線的動力時程分析，建模完成后進行瞬態分析顯示沒問題，但當加地震波之后不收斂，請大神幫忙看看什么問題，命令流如下，地震波文件見附件
/prep7
et,1,shell63
r,1,0.016,0.016,0.016,0.016,,,,,
et,2,combin39
keyopt,2,3,1
et,3,combin39
keyopt,3,3,2
et,4,combin39
keyopt,4,3,3
et,5,combin39
keyopt,5,3,3
r,2,-5e-3,-5e4,-1.5e-3,-5e4,0,0!定義橫向彈簧本構
rmore,1.5e-3,5e4,5e-3,5e4
r,3,-5e-3,-5e4,-1.5e-3,-5e4,0,0!定義軸向彈簧本構
rmore,1.5e-3,5e4,5e-3,5e4
r,4,-4e-3,-6.9e4,-2.5e-3,-6.9e4,0,0!定義垂直彈簧本構
rmore,1.5e-3,1.667e4,5e-3,1.667e4
r,5,0,0,0.05,600000,0.3,1.4e6!定義等效彈簧本構
mp,ex,1,2.1e11
mp,prxy,1,0.3
mp,dens,1,7800
k,1
k,2,0,0,30
l,1,2
circle,1,0.5
adrag,2,3,4,5,,,1
lsel,r,loc,z,0
lesize,all,,,4
lsel,s,length,,30
lesize,all,,,60
mshape,0,2d
mshkey,1
amesh,all
NGEN,2,1000,all, , , , , ,1,
TYPE, 2
MAT, 1
REAL, 2
ESYS, 0
SECNUM,
TSHAP,LINE
EINTF,0.0001, ,LOW,0,0,0,0,0
TYPE,3
MAT, 1
REAL,3
ESYS, 0
SECNUM,
TSHAP,LINE
EINTF,0.0001, ,LOW,0,0,0,0,0
TYPE,4
MAT, 1
REAL,4
ESYS,0
SECNUM,
TSHAP,LINE
EINTF,0.0001, ,LOW,0,0,0,0,0
alls
!兩端彈簧
NSEL,S,LOC,Z,0
NSEL,A,LOC,Z,30
TYPE, 5
MAT,1
REAL, 5
ESYS, 0
SECNUM,
TSHAP,LINE
EINTF,0.0001, ,LOW,0,0,0,0,0
alls
NSEL,S, , ,1001,1976,1
D,all,all
nsel,s,loc,z,0
NSEL,A,LOC,Z,30
nsel,r,,,1,1000
d,all,ux,,,,,uy,roty,rotz
alls
*SET,NT,1000
*SET,DT,0.02
*DIM,AC,,NT,1
/solu
antype,trans
alphad,
betad,
timint,off
nlgeom,on
time,1e-6
nsubst,4,10,2
kbc,1
acel,0,-9.8
solve
timint,on
/input,dizheng,txt
*do,i,1,NT
acel,0,AC(i),0
time,i*DT
nsubst,4,10,2
solve
*enddo
