Module 1: Overview of Vibration Control
  Lecture 3: Active Vibration Cpntrol
 

Active Vibration Control as shown in this diagram involves design of suitable vibration sensors, processing of sensory data and then feeding back necessary signal to the actuators for vibration control.

In a more abstract way the same could be depicted by a block diagram as shown here.

Figure: Block diagram of AVC system

where, r – reference signal, e – error signal, s-variable in the frequency domain, H – Transfer function of the sensor, G – Transfer function of the vibrating system, d- disturbance, Gc - Transfer function of the controller and y – output/response of the system.