Experimental Research on Complementally Connected Control System using Multiple Connected with Springs and Dampers to Mitigate Stress Concentration

A novel combination of structures for connected-control mechanism (CCM) has been presented. By coupling base-isolated and ordinary structures, the vibration suppression effect of CCM is expected to be expanded. Experimental structures and CCM mechanism using magnetic dampers were built and excitation experiments were carried out. In the previous study, however, the achieved vibration suppression performance was not satisfactory. In study, to enhance the performance, spring elements are introduced. The spring constants are tuned according to so-called “fixed-point theory” The performance of the designed system is investigated experimentally.