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CAABSF |
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CAABSF |
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CAABSF |
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CAABSF |
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Bulk Data Entry
CAABSF – Frequency-dependent Fluid Acoustic Absorber Element
Description
Defines the frequency-dependent fluid acoustic absorber element in coupled fluid-structural analysis.
Format
(1) |
(2) |
(3) |
(4) |
(5) |
(6) |
(7) |
(8) |
(9) |
(10) |
CAABSF |
EID |
PID |
G1 |
G2 |
G3 |
G4 |
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Field |
Contents |
EID |
Unique element identification number. No default (Integer > 0) |
PID |
PAABSF property entry identification number. No default (Integer > 0) |
Gi |
Grid point identification numbers of fluid connection points. Default = blank (Integer > 0 or blank) |
| 1. | If only G1 is specified, a point impedance is assumed. If G1 and G2 are specified, a line impedance is assumed. If G1, G2 and G3 are specified, an impedance is associated with the area of the triangular face. If G1 through G4 are specified, an impedance is associated with the quadrilateral face. |
| 2. | The CAABSF element must connect entirely to fluid points on the fluid-structure boundary. |
| 3. | This card is represented as a CAABSF element in HyperMesh. |
Coupled Frequency Response Analysis of Fluid-Structure Models
