A vibration damper based on an eddy current is a frequently used electro-mechanical system. This paper deals with determination of the damping coefficient of such an eddy current damper. For this purpose, Maxwell's relations are simplified to a single quasi-harmonic equation and solved using finite elements. The finite element analysis is done using ‘PDEtool’ in Matlab. The graphical post-processing is performed partly using PDEtool and partly using a short Matlab code.
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KligermanY.GottliebO., ‘Dynamics of a rotating system with a nonlinear eddy-current damper’, ASME Journal of Vibration and Acoustic, 120 (1998), 848–853.
