求助！ANSYS 吸声材料分析结果输出问题
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各位大神，希望可以抽点时间帮我看看这个问题，非常感谢！
我在做材料传声损失分析的东西，编了一个简单的程序，但是输出结果的时候一直显示节点自由度无效，不清楚什么原因，下面是程序，希望大神们可以给点解答意见。
/PREP7
ET,1,SOLID46
R,1,2
RMORE
RMORE,1,,0.2,2,,0.1
ET,3,FLUID30 !与结构耦合空气介质
ET,4,FLUID130
R,4,8,0,0
ET,5,FLUID30,,1,0
MP,EX,1,5.86e10
MP,PRXY,1,0.28
MP,DENS,1,150
MP,EX,2,2e10
MP,DENS,2,64
MP,PRXY,2,0.4
MP,DENS,3,1.21
MP,SONC,3,344
BLOCK,-2,2,-1.5,1.5,0,-0.3
wprot,0,-90,0
SPHERE,,8,-180,0
wprot,0,90,0
VOVLAP,1,2
/ESHAPE, 1
/TRLCY,VOLU,1,ALL
alls
vsel,s, , ,1 !选中长方体，然后对其进行剖分
aslv,s
lsla,s
lesize,all,0.1 !分段是以0.1m 来进行分段的
alls
vsel,s, , ,2
aslv,s
lsla,s
lesize,all,0.2
!!!!!!!!!!!!!!!!!!!!!!!!!!!剖分!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
alls
vsel,s, , ,1
vatt,1, ,1
cm,chang_fang_ti,volu
alls
vsel,s, , ,chang_fang_ti
mshkey,0
mshape,1,3D
smrtsize,6
mshmid,1
vmesh,chang_fang_ti
alls
vsel,s, , ,2
vatt,3, ,3
cm,ban_qiu,volu
alls
vsel,s, , ,ban_qiu
mshkey,0
mshape,1,3D
smrtsize,6
mshmid,1
vmesh,ban_qiu
!修改不与平板（结构）接触单元的材料类型类型为空气介质（不与结构耦合）
ESEL,S,TYPE,,1
NSLE,S
ESLN,S,0
NSLE,S
ESEL,INVE
NSLE,S
EMODIF,ALL,TYPE,5
!在边界生成吸收单元
ASEL,S,,,11
ASEL,A,,,13
ASEL,A,,,16
ASEL,A,,,18
NSLA,S,1
TYPE,4
REAL,4
MAT,3
ESURF
ALLS
!建立流-固接触面
ASEL,S,,,6
NSLA,S,1
ESEL,S,TYPE,,3
SF,ALL,FSI,1
ALLS
/eshape,1,1
!对板的四周施加全约束
ASEL,S,,,9
ASEL,A,,,10
ASEL,A,,,7
ASEL,A,,,8
NSLA,S,1
D,ALL,ALL
ALLS
ASEL,S,,,5
NSLA,S,1
F,ALL,FZ,50
NSEL,ALL
FINISH
/SOLU
ANTYPE,HARM
HROPT,FULL
NSUBST,5
KBC,1
HARF,50,50
SOLVE
FINISH
/POST1
SET,FIRST
ASEL,S,AREA,6
NSLA,S,1
PRNSOL,U,Z
/PREP7
ET,1,SOLID46
R,1,2
RMORE
RMORE,1,,0.2,2,,0.1
ET,3,FLUID30 !与结构耦合空气介质
ET,4,FLUID130
R,4,8,0,0
ET,5,FLUID30,,1,0
MP,EX,1,5.86e10
MP,PRXY,1,0.28
MP,DENS,1,150
MP,EX,2,2e10
MP,DENS,2,64
MP,PRXY,2,0.4
MP,DENS,3,1.21
MP,SONC,3,344
BLOCK,-2,2,-1.5,1.5,0,-0.3
wprot,0,-90,0
SPHERE,,8,-180,0
wprot,0,90,0
VOVLAP,1,2
/ESHAPE, 1
/TRLCY,VOLU,1,ALL
alls
vsel,s, , ,1 !选中长方体，然后对其进行剖分
aslv,s
lsla,s
lesize,all,0.1 !分段是以0.1m 来进行分段的
alls
vsel,s, , ,2
aslv,s
lsla,s
lesize,all,0.2
!!!!!!!!!!!!!!!!!!!!!!!!!!!剖分!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
alls
vsel,s, , ,1
vatt,1, ,1
cm,chang_fang_ti,volu
alls
vsel,s, , ,chang_fang_ti
mshkey,0
mshape,1,3D
smrtsize,6
mshmid,1
vmesh,chang_fang_ti
alls
vsel,s, , ,2
vatt,3, ,3
cm,ban_qiu,volu
alls
vsel,s, , ,ban_qiu
mshkey,0
mshape,1,3D
smrtsize,6
mshmid,1
vmesh,ban_qiu
!修改不与平板（结构）接触单元的材料类型类型为空气介质（不与结构耦合）
ESEL,S,TYPE,,1
NSLE,S
ESLN,S,0
NSLE,S
ESEL,INVE
NSLE,S
EMODIF,ALL,TYPE,5
!在边界生成吸收单元
ASEL,S,,,11
ASEL,A,,,13
ASEL,A,,,16
ASEL,A,,,18
NSLA,S,1
TYPE,4
REAL,4
MAT,3
ESURF
ALLS
!建立流-固接触面
ASEL,S,,,6
NSLA,S,1
ESEL,S,TYPE,,3
SF,ALL,FSI,1
ALLS
/eshape,1,1
!对板的四周施加全约束
ASEL,S,,,9
ASEL,A,,,10
ASEL,A,,,7
ASEL,A,,,8
NSLA,S,1
D,ALL,ALL
ALLS
ASEL,S,,,5
NSLA,S,1
F,ALL,FZ,50
NSEL,ALL
FINISH
/SOLU
ANTYPE,HARM
HROPT,FULL
NSUBST,5
KBC,1
HARF,50,50
SOLVE
FINISH
/POST1
SET,FIRST
ASEL,S,AREA,6
NSLA,S,1
PRNSOL,U,Z
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