Passive and active vibration isolation under isolator-structure interaction: application to vertical excitations

Abstract This work studies the influence of a vibration isolator on response flexible base structure. Two strategies are compared: passive and active isolation (PVI, AVI). Although multiple advantages AVI over PVI techniques well known, their effect in structure has not to date been compared. interaction an important role performance general control system, especially when system is only or there isolators working simultaneously it. In addition, structural serviceability can also be affected. The analysis problem made from wide perspective, including that Hence assuming non-rigid system. studied for extensive range structures, thus showing different possible scenarios. quantified by comparing peak magnitude both used. theoretical results have corroborated undertaking experimental tests full-scale laboratory