Control of torsional vibration of flexible structures using an inertia moment actuator

A control technique using an inertia-moment actuator is presented as a control method for the torsional vibration of flexible structures. In this method, torsional vibration of a flexible structure is controlled by the inverse torque arising when rotating an auxiliary mass by a motor. In addition, a method for synthesizing the control system is presented for a case using a low-pass filter to suppress the spillover of unmodeled modes and noise. The optimal feedback gains are modified by formulating a control problem with the control structure constraint, taking into account the dynamic characteristics of the filter.