Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 09, 2018 - September 12, 2018
In this paper an electromagnetic damper using blushless DC motor and capacitor was developed in order to make a semiactive damper simply, compact, more efficient capability and to void a mechanical loss. A brushless DC motor is contactless, and a direct drive is relatively compact. So it is able to make small and decrease a friction. It is not necessary to add bearing, coupling and supporting. The damping force is caused by energy dissipation of electric resistances at terminal ends of the motor. However, capacitors were inserted into the terminal ends with the resistances, this is a quite different from a conventional type. Test damper, which has a ball screw mechanism, was manufactured, and resisting force characteristics were measured in cases of delta- or star-winding configurations with the capacitors in parallel or series. And the theory of damping force was introduced. Finally, the experimental results were compared with the calculated result, and a dynamic property of the damper was confirmed.
