A physics node that is exclusive has a Harmonic Perturbation subnode. This subnode adds harmonic perturbations to the right-hand-side contributions of its parent node (for example, a
Boundary Load on the
Solid Mechanics interface or a
Terminal node on the
Electric Currents interface). In the
Settings window, the perturbation is entered for these contributions, which is only used when you solve for a
Frequency Domain Perturbation study type. The parent node defines the stationary value for the contribution, which is not present for the
Frequency Domain Perturbation study.