This paper reports an analytical method to obtain approximate solution for optimal design of tuned inerter damper (TID) in MDOF damped civil structures. The is based on the equivalent linearization which converts mass-stiffness-damping system into a mass-equivalent stiffness and technique modal subsystem structure-TID SDOF system. procedures systems are introduced. Following this, proposed veri...

This paper gives the numerical analysis on characteristics of active force in HMD control systems. In order to quantitatively evaluates the direction characteristics of active force with respect to the relative displacement or velocity of mass piece, a set of five performance indexes are defined, and also the ratios of either peak value or RMS value of active force to inertia force. This set of...

earlier studies have shown conclusively that a tuned liquid damper (tld) is effective for controlling vibrations in structures subjected to narrow-banded wind excitations. a recent numerical study has shown that if the design parameters of a tld are properly set, this device could also be very effective for controlling structural vibration to broad-banded earthquake excitations. here the result...