马上注册,结交更多好友,享用更多功能,让你轻松玩转社区。
您需要 登录 才可以下载或查看,没有账号?我要加入
x
考虑空气阻尼的两端固定的薄版的振动模态问题,用于提取该情况下空气阻尼的alpha,beta值。
模态分析可以进行,但执行RMFLVEC命令时,报错如下:
Subscript 1 is out of range for parameter _NODENORMALVEC
Specified value is 3332 Maximum value is 3331.
请问这个错误是什么意思,如何修改?
整个模型命令流如下:
/PREP7
lbeam=2e-4
wbeam=2e-5
tbeam=2e-6
lpzt=2e-4
wpzt=2e-5
tpzt=1e-6
d_el=1e-5
pamb=1e5
visc=18.3e-6
pref=1e5
mfp=64e-9
Knud=mfp/d_el
ET, 1, SOLID5
ET, 2, SOLID45
ET, 3, FLUID136
MP, DENS, 1, 7640
MP, PERX, 1, 8.93e-9/8.854e-12
MP, PERY, 1, 8.93e-9/8.854e-12
MP, PERZ, 1, 6.92e-9/8.854e-12
MP, KXX, 1, 1
MP,MURX, 1, 1
MP,NUXY, 1, 0.27
mp,visc,3,visc
r,3,d_el,,,pamb
TB, PIEZ, 1
TBDATA , 1, 0, 0, -12.3082
TBDATA , 4, 0, 0, -12.3082
TBDATA , 7, 0, 0, 20.7574
TBDATA , 10, 0, 0, 0
TBDATA , 13, 0, 17.0357, 0
TBDATA , 16, 17.0357, 0, 0
TB,ANEL , 1
TBDATA , 1, 11.565e10, 6.489e10, 6.229e10, 0, 0, 0
TBDATA , 7, 11.565e10, 6.229e10, 0, 0, 0
TBDATA , 12, 9.298e10, 0, 0, 0
TBDATA , 16, 1.786e10, 0, 0
TBDATA , 19, 1.786e10, 0
TBDA TA , 21, 1.786e10
MP, EX, 2, 1.7e11
MP,NUXY, 2, 0.3
MP,DENS, 2, 2330
BLOCK, , lbeam , ,wbeam , , tbeam
BLOCK, , lbeam , ,wpzt , tbeam, tbeam+tpzt
vglue,1,2
esize,2e-6
type,1
mat,1
vmesh,3
esize,2e-6
type,2
mat,2
vmesh,1
nsel,s,loc,z,0
type,3
mat,3
real,3
esurf
nsel,s,loc,x,0
nsel,a,loc,x,lbeam
nsel,a,loc,y,0
nsel,a,loc,y,wbeam
nsel,r,loc,z,-1e-9,1e-9
d,all,pres
allsel
esel,s,type,,3
nsle,s,1
cm,FLUN,node
allsel
nsel,s,loc,x,0
nsel,a,loc,x,lbeam
d,all,ux
d,all,uy
d,all,uz
allsel
fini
/solu
antype,modal
modopt,lanb,2
eqslv,sparse
mxpand,2
solve
fini
/post1
RMFLVEC
fini
/solu
abextract,1,2
finish
[ 本帖最后由 xuruikl 于 2008-12-1 17:15 编辑 ] |