Design of Servodamper Control System

Abstract

For the purpose of increasing the dynamic stiffness of mechanical structures, this paper proposes a servodamper method. Without the necessity to tune the damper characteristics to the requirements of the structure, the servodamper can be applied even to structures whose dynamic characteristics vary in a very large frequency range. From a viewpoint of state feed back control, a design procedure of the servodamper system is shown. Then proposing a new concept of a minimum performance index, this paper presents a criterion to determine a control law for the servodamper control system. Using the criterion defined in this paper, a damping effect on structures is discussed quantitatively. Finally, the result of the experiment of the servodamper system is reported.