Effect of tuned mass damper on the interaction of a quarter car model with a damaged bridge

Abstract

This paper considers the effects of a tuned mass damper (TMD) on damaged bridge–accelerating quarter car vehicle interaction. The damage of the bridge is considered to be an open crack. The incorporation of a TMD to control the vibration response of the bridge and the quarter car vehicle model has been investigated from different aspects. A simplified form for the tuning ratio of the TMD is proposed. The vibration mitigation of the peak displacement, velocity and acceleration of the damaged bridge and the accelerating quarter car vehicle model using such a tuning is observed, along with the effects of possible detuning of the TMD due to the progressive deterioration of the bridge. A detailed parametric study is performed on the system with the TMD, considering the effects of quarter car vehicle model velocity, acceleration and the severity of the damage of the bridge.

Keywords:

• tuned mass dampers
• open crack
• vibration control
• tuning ratio
• bridge–vehicle interaction