Eigenmodes of a Viscoelastic Structural Damper
Application ID: 75931
In this example, the eigenmodes of a structural damper are computed.
In the damper, most of the deformation is controlled by the viscoelastic domains, which have strongly frequency-dependent stiffness and damping properties. This leads to a nonlinear eigenfrequency problem, which can be solved by either using a nonlinear eigenvalue solver or by approximating the material data using a partial fraction fitting algorithm.
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