Use the Harmonic Perturbation subnode to specify the harmonic part of non-zero prescribed displacements, rotations, velocities, or accelerations. This node is used if the study step contains frequency response of a perturbation type.

The settings are the same as in the parent Prescribed Displacement, Prescribed Velocity, Prescribed Acceleration, Prescribed Displacement/Rotation or Rigid Connector node. Only degrees of freedom selected as prescribed in the parent node can be assigned a value.

Physics tab with Prescribed Displacement, Prescribed Velocity, Prescribed Acceleration, Prescribed Displacement/Rotation, or Rigid Connector node selected in the model tree:
Attributes>Harmonic Perturbation