By Miriam Chillemi

The inerter: what a great invention! But where to place it for civil engineering purposes?

Dynamic vibration control devices provided with inertance, such as Tuned Inerter Dampers (TIDs), Tuned Mass Damper Inerters (TMDIs) or Tuned Liquid Column Damper Inerters (TCDIs), have been shown in numerous numerical studies to have superior vibration mitigation performance compared to conventional devices, such as Tuned Mass Dampers (TMDs). In this study, the behavior of this device and its influence on the response of vibration-prone systems are investigated by analyzing different configurations in a civil engineering context, finding optimized parameters, and assessing the performance of various systems with the inerter in different positions. Indeed, the position of the device can have a significant impact on the benefits derived from structural control design. Numerical analysis shown that to achieve maximum mass amplification effect, one of the inerter terminals must immovably fixed. Moreover, the optimal parameters depend on the particular configuration. Therefore, they must be carefully selected in order to find a suitable numerical optimization method.

For more information: http://repozytorium.p.lodz.pl/handle/11652/4116