Abstract
The latest earthquakes history shows that resistant conception, safe and economical structures are a daily challenge for structural engineers. Among the newest vibration control devices figures the inerter which is a device which can develop a large fictive mass (it consists of a mass amplification effect) using rotational inertia. In this research work, the effectiveness of a traditional passive tuned mass damper (TMD) is compared with a tuned mass damper inerter (TMDI) which consists generally of tuned mass damper coupled with an Inerter. Both devices are used to control a base-isolated structure vibration submitted to several seismic records. In This study, a base-isolated structure of six stories (6 DOF) was equipped with (TMD) and (TMDI) and a time history analysis were performed under different earthquake records (El Centro, Kobe, Kocaeli). The mathematical model of the building is established in MATLAB Simulink. The simulation results illustrated he robustness, performance and effectiveness of the structure equipped with a (TMDI). The dynamical parameters of interest were base and top displacement as well as the base shear force and peak inerter force produced.
Highlights
IntroductionThe research of an effective vibration suppression systems such as (passive, active, semi-active and hybrid ) has been a daily challenge in the civil engineering area, mainly for mitigating the dynamic vibration and decreasing the effects of the damage due to natural phenomena, such as earthquakes and winds or several excitations (Brzeski et al, 2015)
The research of an effective vibration suppression systems such as has been a daily challenge in the civil engineering area, mainly for mitigating the dynamic vibration and decreasing the effects of the damage due to natural phenomena, such as earthquakes and winds or several excitations (Brzeski et al, 2015).The base-isolated passive control can be used to reduce the buildings response
Different strategies were used and results were compared: the tuned mass damper inerter (TMDI) connected between the ground and the base-isolated in structure (L3) and tuned mass damper (TMD) placed in the same position of TMDI in structure (L2) showed in previous (Fig 3)
Summary
The research of an effective vibration suppression systems such as (passive, active, semi-active and hybrid ) has been a daily challenge in the civil engineering area, mainly for mitigating the dynamic vibration and decreasing the effects of the damage due to natural phenomena, such as earthquakes and winds or several excitations (Brzeski et al, 2015). Tuned mass damper inerter (TMDI) creates a conventional generalization passive tuned mass damper (TMD) mass, spring, damper, and inerter.TMDI getting the attention of the researcher (Giaralis and Taflanidis, 2015) In this last study, the TMD Inerter enables beneficial in reducing vibration motion from earthquakes and winds that advantage dubbed inertance (the mass effect of TMDI) which can reach of size to 200 times higher than its apparent mass established (Brzeski et al, 2015; Giaralis and Taflanidis, 2015; Hu and Chen, 2015; De Domenico and Ricciardi, 2018; Charrouf et al, 2019; Jia et al, 2019)
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