Active Vibration Control Simulation Research of Carbody Vibration Using Piezoelectric Actuators
In railway operation today,there is a general trend towards increased vehicle speeds.The lightweight design of carbody reduces the structure stiffness and increases the accelerations and forces on the vehicle,which has a negative impact on the ride quality.It is necessary to pay special attention to the structure vibration and find effectively methods to control it.To save those problems,an active vibration reduction system using piezoelectric actuators is proposed.The calculation results show that the active control can effectively suppress vibration modes of the carbody,especially the first bending mode vibration and improves the riding quality.The rationality and superiority of this active control method is reflected.