Dynamic Analysis of Eddy Current Damping Mechanism Employing 3-D Finite Element Method

抄録

This paper describes a dynamic response analysis of a laser marker which has an eddy current damping mechanism. In this calculation the equation of magnetic field is coupled with the equation of motion employing the 3-D finite element method (FEM), and time variations of the pendulum are computed to estimate the damping time. The usefulness of the computation is clarified through the comparison with the measured results. Moreover, the effectiveness of proposed damping structures is also confirmed by the comparison with the conventional one.