Simulation of Micromirrors

Typical layout of a micromirror

 For electrostatically actuated micromirrors we investigated the effects of residual stresses on their natural frequencies.

 First two vibration modes of a micromirror, the second being the operational torsional one

 In a fully nonlinear analysis, we also modelled the damping due to the surrounding fluid when large displacements are involved.

Damping simulation: pressure contour and velocity field around the tilting micromirror

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