The Electromechanics, Membrane interface (
), found under the
Electromagnetics–Structure Interaction (
) branch within the
Structural Mechanics branch (
) or the
Electromagnetics and Mechanics (
) branch within the
AC/DC branch (
) when adding a physics interface, combines Membrane and Electrostatics with a moving mesh functionality to model the deformation of electrostatically actuated membranes. The
Electromechanics, Membrane interface is available for 3D and axisymmetric 2D geometries.
When this multiphysics interface is added using the Model Wizard, a
Membrane interface and an
Electrostatics interfaces are added to the
Model Builder. In addition, the
Multiphysics Couplings node is added, which automatically includes the multiphysics coupling feature
Electromechanics, Boundary.
The full functionality of the Membrane and Electrostatics interfaces is accessible under the corresponding interfaces at the domain, boundary line, or point level in the geometry. The participating Electrostatics interface by default adds the
Free Space node with its selection set to all domains. This node serves to represent dielectric domains adjacent to the membrane domains. Any number of
Charge Conservation in Solids or
Charge Conservation in Fluids nodes can be added manually to the interface and configured to represent either solid or nonsolid materials.