The Thermal Perturbation, Frequency Domain study is available with various heat transfer interfaces and requires the Heat Transfer Module or the MEMS Module. This study computes eigenmodes and eigenfrequencies of linearized model around an equilibrium steady-state temperature field.

The study consists of two study steps: a Stationary study step, for computing the steady-state solution, followed by a Frequency-Domain Perturbation study step, for computing the harmonic oscillations.