Structural pendulum vibration control methods based on tuned-rotary-inertia-damper (II) : full-scale model experiments and miniaturization study

This paper is a further study of the tuned-rotary-inertia-damper(TRID) system based on the previous work of modeling of TRID system and the work of small-scale model experiments. First, the full-scale pendular vibration control experiment of a medium crane hook is carried out to verify the effectiveness of the TRID control system. Next, a TRID system is designed to control the pendular vibration of the crane hook on a large ship sailing in the ocean. As the TRID system is too large to be used in practical engineering, the gear box is introduced to miniaturize the TRID system. Through a preliminary miniaturization study and the numerical analyses, we find that the gear box is desirable for generating a large-equivalent rotational inertia for the small physical inertia in the TRID system.