Normal Displacement
The Normal Displacement adds an inward normal displacement dn, which is assumed to be harmonically oscillating:
Alternatively, specify the acceleration d0 of the boundary. The part in the normal direction is used to define the boundary condition:
This feature represents an external source term. It can also be used to manually couple acoustics with a structural analysis for modeling acoustic-structure interaction.
Normal displacement
Select a Type: Inward Displacement (the default) or Displacement.
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For Inward Displacement enter the value of the Inward displacement dn (SI unit: m). Use a positive value for inward displacement or a negative value for outward displacement.
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For Displacement enter values for the components of the Displacement d0 (SI unit: m).