EACS 2016 paper - Use of overturning spectra in the performance evaluation of on-off control strategies for rocking objects
This paper presents some numerical investigations about a novel on-off adaptive control strategy for rigid blocks subjected to rocking motion. In more detail, control algorithms were specifically conceived to regulate an adjustable stiffness of two restrainers placed at the lower corners of the block. The control’s laws and the anchorage devices exhibited good performance when excited by simple one-sine pulse excitation, as reported by the authors in a previous study. The present work will instead investigate the performance and the robustness of the controlled system with respect to amplitude modulated harmonic excitations.