Design and Analysis of a New Type of Electromagnetic Damper With Increased Energy Density

configuration of eddy current dampers. An analytical model for this eddy current damper is derived based on electromagnetic theory, and the eddy current density is computed using finiteelement analysis FEA. The predictions of both the analytical model and finite-element analysis agree reasonably well with experimental studies. The results show that the new configuration of eddy current damper has significantly higher efficiency than current implementations. We developed the prototype and demonstrated that the eddy current damper of 100150140 mm 3 can achieve a damping constant 2230 N s /m, whose damping density 1061 kNs/m /m 3 is 5 times more than the typical value 11, and the dimensionless coefficient C0 is also several times higher than the traditional configuration found in the literature. The dependence of damping coefficients on the velocity and frequency is also explored.