做一个分析,一侧开口的空腔结构,在开口侧有一声源,求壁面全吸声、全反射及靠近声源一侧面全反射而其他面全吸声时,空腔内声场的声压分布。但做的结果好象都太大了,一直搞不懂,请各位帮忙。下面是我做的命令流(一个侧面反射)
New Name 'lianxi'Model 1 File lianxi.sdb Return
Option BEM Indirect Variational Uncoupled Unbaffled Frequency Return
Environment Section SETUP ANSYSREVISION'5.7'
Import Mesh Format Ansys File boxrelect.cdb Return
Set Name "Envelope" Envelope
Elements ALL
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Set 2 Name "top"
Element Internal 1 To 96
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Set 3 Name "singelside"
Element Internal 577 To 696
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Set 4 Name "all"
Element Internal 1 To 696
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Set 5 Name "allside" Difference 4 2 Return
Set 6 Name "otherside" Difference 5 3 Return
Boundary Jump Pressure Real 0 Imag 0
Nodes Set1
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Boundary Impedance Real 416.5 Imag 0 Positive
Element Set6
Element Set2
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Source Name '1' Spherical
Amplitude Real 1 Imag 0
Position 0.3 -0.3 0
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Solve
Frequency 100 To 500 Linstep 100
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Point Plane 0 -1.2 0.2 To 0 0 0.2 Divide 12 To 0.8 -1.2 0.2 Divide 8 Return
PostProcess
Points All
Frequency 100 To 500 Linstep 100
Near2
Far5
Quadrature 2 2 1
Save Results Step1
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