Dynamic Vibration suppression using largemass Dampers

It is well-known that, Tuned Mass Dampers (TMD) are installed to regulate the dynamic vibrations. In this study optimum parameters one of thepast classic study is used. Tuned Mass Damper (TMD) is a passive control device which absorbs energy & reduces response of vibration. It is attached to vibratory system.The criteria used to obtained the optimum parameter is to choose for a given mass ratio, the frequency ratio and damping ratios that put result in equal and large model damping in the first two prominent modes of vibrations. The parameters are used to compute, the responses of several single and multi-degree of freedom with TMDs to different earthquake excitations.In the present study, performance of Three TMDs are compared. The mass ratio for those TMDs are taken as 30%, 40% and 50%. It is shown that large mass of TMD is more robust and effective in reducing the response under earthquake.