Harmonic Perturbation, Prestressed Analysis, and Small-Signal Analysis

In general, how the perturbation concept (and the study) is named is based on the application. For example, in the AC/DC Module and Semiconductor Module, it is referred to as small-signal analysis, whereas in the Structural Mechanics Module it is referred to as prestressed analysis. For the Batteries & Fuel Cells Module and the Electrodeposition Module, the studies are called AC impedance. For the CFD Module, and fluid flow in general, the term perturbation is sufficient.

See these study types for details about availability by module and physics interface: • Frequency-Domain Perturbation • Small-Signal Analysis, Frequency Domain • Prestressed Frequency Analyses Studies • AC Impedance, Stationary • AC Impedance, Time Dependent

• With the Acoustics Module and AC/DC Module, see Loudspeaker Driver: Application Library path Acoustics_Module/Electroacoustic_Transducers/loudspeaker_driver. • With the AC/DC Module, see Small-Signal Analysis of an Inductor: Application Library path ACDC_Module/Inductive_Devices_and_Coils/small_signal_analysis_of_inductor.