Multi-objective optimal design and seismic assessment of an inerter-based hybrid control system for storage tanks

Abstract In this paper, a hybrid control system (HCS) endowing base isolation (BIS) with Tuned Mass Damper Inerter (TMDI) is proposed for the protection of steel storage tanks from severe structural damages induced by seismic events. Among all components industrial plants, cylindrical are widely spread and play primary role when subjected to hazard, since they suffer many critical issues related their dynamic response such as high convective wave height shear force. The adopted realized spring damper elements, whereas TMDI tuned mass connected ground inerter. developed mechanical model consists MDOF system, which considers impulsive modes well dynamics. An optimal design problem tackled, making use multi-objective approach, scope mitigate simultaneously tank. A zero mean white noise excitation assumed input in procedure. Once HCS optimally designed, systematic investigation its effectiveness reached through parametric analysis. Modal parameters frequency functions discussed. literature case study comparing designed traditional illustrated performances assessed stochastic natural earthquakes.