<p>This paper introduces a novel solution approach for rotary eddy current dampers, utilizing Maxwell’s electromagnetic equations and the 3D finite difference time-domain method. This approach effectively overcomes the limitations of traditional analytical solutions. The damper consists of several permanent magnets placed at specific locations relative to a rotating conductive disc. The presented modeling technique is validated through a two-phase procedure. In the first phase, the resistive torque induced by eddy currents is measured using a dedicated test setup. The model is then updated using the least squares approach by comparing the resistive torque predicted by the numerical model with the experimental measurements. The second phase involves finite element simulations to verify the model’s accuracy in predicting the performance of the damper by comparing the simulation results with those of the experimentally updated analytical model. Subsequently, the validated analytical model is employed to comprehensively investigate the influence of various damper parameters on the resistive torque. The findings reveal that placing magnets on both sides of the disc, significantly increases the resistive torque due to the magnetic field interference. Additionally, factors such as increased distance between the magnets and the disc center, higher disc rotation speed, larger magnet dimensions, and reduced air gap all contribute to a higher resistive torque. The proposed modeling and solution methodology offer a valuable computational tool for optimizing configurations of the damper, eliminating the need for extensive experimental testing or time-consuming finite element analyses.</p>