Efficient active vibration control strategy requires the development of efficient mathematical model of system incorporating optimum actuator and sensor positioning, feedback gain computation and control system integration. In this paper optimumactuator peak voltage and location for single and double patch configuration is studied for a smart cantilever beam using FEM for passive open loop control. Modal and harmonic analyses are performed to study the system dynamics. Active control based on PID controller for a three-degrees of freedomspring mass system in ANSYS is also presented.

Keywords: PID, Transient response, Smart beam, Harmonic analysis, Piezoelectric.