A New Control Scheme for Time-Delay Compensation for Structural Vibration

This paper addresses the vibration control of seismic-excited building structures in the presence of input time-delay. The control scheme is based on a prediction approach for input delay compensation and H-infinity theory. The prediction scheme, which relies on state observers, is tuned by means of the optimization of the smoothed spectral abscissa, that is a suitable robust stability measure since it provides a trade-off between the optimization of the spectral abscissa and the H-2 norm of the system. The effectiveness of the proposed control scheme is illustrated with simulation results of a reduced scale two-storey building structure. Copyright (C) 2020 The Authors.