Structural pendulum vibration control methods based on tuned-rotary-inertia-damper (I): parametric impact analysis and bench-scale model tests

Because the commonly-used tuned-mass-damper(TMD) is ineffective in controlling the pendulum vibration of a suspended structure, we explore, by numerical analysis and practical experiments, the swing-motion control of such structures by using an innovative tuned-rotary-inertia-damper(TRID). First, by the non-linear differential equations and the simplified analytical model, we determine the interaction effects between the TRID system and the suspended structure. These effects are studied through Simulink and ADAMS dynamical codes, and the results are summarized and systematically analyzed. Optimal key-parameters of the TRID, such as the inertia ratio, the tuning ratio and the damping ratio, etc., are determined for controlling the swing-motion of structures. The effectiveness and feasibility of TRID control system are further validated by the bench-scale-shaking-table-tests.