导入文件：
Option BEM Indirect Variational Uncoupled Unbaffled Frequency Return {边界元
Import Mesh Format Free File plate.fre Return
New Name 'time' Model 1 File time.sdb Return {有限元
Option FEM Time Fluid Return
Import Mesh Format Free File fem_mesh.fre Return
New Name 'FEM' Model 1 File fem.sdb Return
Option FEM Uncoupled Frequency Return
Import Mesh Format Free File fem_mesh.fre Return
Input Modes Fluid Format Free File './cavitymod.fre' Return {导入模态
其他：
Twodimensional Return { 2D分析
Renumber Node x=0 Return {带宽
Modes Vector 10 {分析模态
Shift -10 Tolerance 1.0000e-6 Iteration 100 {设置分析参数
Return
Extract Frequencies
Link {定义耦合条件
中国建筑环境声学网 Model 1
Elements all
To
Model 2
Faces z=0
Behavior FLUID-STRUCTURE
Return
Parameter Model 1 {定义模型1的求解参数
Vector 0
Save Displacements Step 1
Energy
Return
Parameter Model 2 {定义模型2的求解参数
Vector 0
Save Potentials Step 1
Save Results Step 1
NoFlow
Energy
Return
生成集合：
Set Name "Envelope" Envelope
Elements All
Return
Set 10 Name " firewall"
Elements X=0 Return
Set 10 Name "bottom_top"
Elements Between Z = -0.5,-0.5
Elements Between Z = 0.5,0.5
Return
Set 16 Name "nodes-intersection" Intersection 13 15 Return
给13亿中国人们更多听觉关怀！！ 生成列表：
Table 1
Type Time Name 'acc'
0 Real 0 Imag 0 {第一个为横坐标值，第二个为竖坐标值 实部
0.001 Real 1 Imag 0
0.002 Real 0 Imag 0
Return
画曲线：
Curve
Table 1 {列表
Format 1
NoBackground
Marker 0
Return
Return
Curve
Nodes 267 {节点
Pressure
Format 3 NoBackground
Marker 0
Type 1 dBLin Narrow Added
YMinimum 100 YMaximum 150
Return
Return
设定边界条件：
Boundary Jump Pressure Real 0 Imag 0 { 就是free edge
Nodes Set 1
Return
Boundary Velocity Real 5 Imag 2 {定义结构（振动片）的速度
Elements All
Return
Boundary Acceleration Table 1 {定义结构（振动片）的加速度
Faces X = 0
中国建筑环境声学网
Return
Boundary Admittance Real .002 Imag 0
Nodes Set 50
Return
Boundary
UZ Real 0 Imag 0
Nodes Set 10
Return
Boundary
FZ Real 1000 Imag 0
Nodes Near 0.6,0.2
Return
Generate
Face all From Displacements File structural_results.fre Format Free {结构的结果作为声 的边界条件
Frequency 10 to 150 step 10
Mesh File structural_mesh.fre Format Free
Algorithm 1 Tolerance .03 Average 3
Return
定义材料属性：
Material Fluid
Name 'air'
Sound Real 3.4300e+002 Rho Real 1.2250e+000
Return
Material Shell
Name 'shell'
Young 2e11 Poisson .3 Rho 7800
Elements all
Return
Geometry Thickness .01
Elements all
Return
本站版权所有！！ 定义场点：
Point Sphere Radius 1.0 Divide 12 Return
Point 1.387 0.227 0 Return
求解：
Solve
Frequency 25 To 500 LinStep 25 {频域内
Return
Solve
Time 0 To 0.01 Step 0.001 {时域内
Return
postprocess {求解场点
Frequency 25 To 500 LinStep 25 {Analysis - process field points 一般在边界元中
Near 2
Far 5
Quadrature 2 2 1
Save Results Step 1
Return
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