搞得好麻烦,索性全部给你做完。
载荷消声器入口处声压100dB,也就是2Pa。结果显示为扩展为3/4整体模型80Hz分析得到的分贝图(dB)。
/prep7
et,1,plane42
et,2,fluid29
et,3,fluid129
r,2,2e-5
r,3,2,0,0
et,4,fluid29,,1,0
mp,ex,1,2.10e11
mp,dens,1,7600
mp,nuxy,1,0
mp,dens,2,1.22
mp,sonc,2,1460
k,1,0,0.55
k,2,0.9,0.55
k,3,1,0.6
k, 4,,0.6
k,5,2
k,6,1.5
k,7,1.5,0.2
k,8,1,0.2
k,9,0,2
k,10,0.9,0.6
k,12,0.9,0.15
k,13,1,0.15
k,15
k,16,0.9
k,17,1.5,0.15
l,1,15
l,1,4
l,4,9
l,15,16
l,16,6
l,6,5
l,4,10
l,10,3
l,1,2
l,2,12
l,3,8
l,8,7
l,12,13
l,13,17
l,7,17
l,17,6
larc,5,9,3,2
l,2,10
l,8,13
l,12,16
al,1,4,20,10,9
al,20,5,16,14,13
al,2,9,18,7
al,18,10,13,19,11,8
al,14,15,12,19
k,100,2,2
l,3,100
k,101,2,0.2
l,7,101
lsel,s,,,21,22
CM,sub,LINE
alls
lsbl,17,sub,,delete,keep
lsbl,21,25,,delete,keep
lsbl,22,25,,delete,keep
ldele,26,27,1,1
al,3,7,8,17,24
al,17,25,21,12,11
al,15,16,6,23,21
lesize,1,,,9,1
lesize,2,,,1,1
lesize,3,,,11,1
lesize,4,,,10,1
lesize,5,,,8,1
lesize,6,,,5,1
lesize,7,,,10,1
lesize,8,,,2,1
lesize,9,,,10,1
lesize,10,,,6,1
lesize,11,,,6,1
lesize,12,,,6,1
lesize,13,,,2,1
lesize,14,,,6,1
lesize,15,,,1,1
lesize,16,,,3,1
lesize,17,,,11,1
lesize,18,,,1,1
lesize,19,,,1,1
lesize,20,,,3,1
lesize,21,,,5,1
lesize,23,,,4,1
lesize,24,,,6,1
lesize,25,,,6,1
asel,s,,,1,2
asel,a,,,6,8
aatt,2,2,2
LCCAT,7,8
MSHKEY,1
AMESH,6
LCCAT,12,21
MSHKEY,1
AMESH,7
LCCAT,15,16
MSHKEY,1
AMESH,8
LCCAT,10,20
MSHKEY,1
AMESH,1
LCCAT,13,14
MSHKEY,1
AMESH,2
alls
ldele,26,29
ldele,22
asel,s,,,3,5
aatt,1,,1
mshkey,1
amesh,3
amesh,5
lccat,10,18
lccat,11,19
mshkey,1
amesh,4
alls
esel,s,type,,1
nsle,s
esln,s,0
nsle,s
esel,inve
nsle,s
emodif,all,type,4
alls
wprot,45
CSYS,4
ARSYM,Y,all, , , ,0,1
wprot,-45
nsym,y,1000,all
esym,,1000,all
nummerg,all
csys,1
nsel,s,loc,x,2
type,3
real,3
mat,2
esurf
alls
csys,0
nsel,s,loc,y,-1.5,-.9
nsel,r,loc,x,.15
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,-1.5,-1
nsel,r,loc,x,.2
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,-.9,.9
nsel,r,loc,x,.55
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,-1,1
nsel,r,loc,x,.6
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,.9,1.5
nsel,r,loc,x,.15
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,1,1.5
nsel,r,loc,x,.2
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,-1.5
nsel,r,loc,x,.15,.2
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,-1
nsel,r,loc,x,.2,.6
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,-.9
nsel,r,loc,x,.15,.55
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,.9
nsel,r,loc,x,.15,.55
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,1
nsel,r,loc,x,.2,.6
esel,s,type,,2
sf,all,fsi,1
alls
nsel,s,loc,y,1.5
nsel,r,loc,x,.15,.2
esel,s,type,,2
sf,all,fsi,1
alls
/solu
antype,harmic
hropt,full
nsel,s,loc,y,-1.5
nsel,r,loc,x,,.15
d,all,pres,2
alls
HARF,80,80
SOLVE
/post1
SET,FIRST
esel,s,type,,2
esel,a,type,,4
PLESOL, NMISC,4, 0,1.0
/EXPAND,27,AXIS,,,10
其中注意模型轴对称方向错误,已经修正。 |