Active Vibration Control of an Inertia-type Piezoelectric Actuator based Suspended Handle using PID-AFC Controller

Abstract

Active vibration control (AVC) is an effective method to attenuate the vibration produced at different excitation frequencies. In this paper, the vibration of suspended handle was suppressed using an inertia-type piezoelectric actuator. This study involves the characterization of piezoelectric actuator to evaluate its performance using different inertia masses. The study was followed by development of three different controllers, which is PID manual tuning, PID auto-tuning and PID-AFC controllers. From the results, it was observed that the accelerations at the handle decrease from 7.54 m/s2 to 3.79 m/s2 (a total pf 49.7% of vibration reduction) after activating the controller. It was experimentally determined that PID-AFC controller gives the best vibration attenuation, followed by PID manual tuning and auto-tuning. The vibration reduction is more significant using larger inertia mass.