TORSIONAL DELAYED RESONATOR WITH VELOCITY FEEDBACK

This paper concerns a recent vibration absorption scheme, which is cal led the delayed resonator (DR). Torsional vibration cases are consider ed here for the first time with the new scheme. The angular velocity, which is a commonly measurable state for rotating systems, is fed hack with a controlled Lime delay, as opposed to the position and accelera tion of the earlier studied translational vibration cases. Some intere sting distinctions of this control law are highlighted. Analytical and experimental findings are presented to show how the method of DR abso rption can be adapted on an electric drive setting, The stability anal ysis Is also reviewed for the entire system, including the DR absorber and the original oscillatory structure. Encouraging agreement between analytical and experimental findings are reported.