Modal Reduced-Order Model
The Modal Reduced-Order Model () study step is used for exporting reduced-order model matrices.
You can add a Modal Reduced-Order Model study step for exporting the reduced order model matrices after an Eigenfrequency study step for computing the eigenfrequencies and eigenmodes of a linear or linearized model in the frequency domain.
A Modal Reduced-Order Model study step uses the Modal Solver. It uses the transient equation form for the export. The matrices can be accessed through the COMSOL Multiphysics API or in table format from a System Matrix derived value.
The Modal Reduced-Order Model is a legacy feature. You are advised to use the Frequency Domain, Modal Reduced-Order Model or Time Dependent, Modal Reduced-Order Model studies to obtaine matrices for reduced models.