Vibration Control of Smart Cantilever Beam Using Fuzzy Logic Controller

Abstract

This paper presents active vibration control of smart cantilever beam using collocated piezoelectric sensor and actuator. The vibrating response of piezolaminated cantilever beam is modeled using lumped mass approach. Fuzzy logic controller is used to control the vibration, and 49 rules have been established to develop the controller. Input sensor voltage and rate of change of sensor voltage are considered as inputs while actuator voltage is considered as output. Eight combinations of different membership functions have been considered. Finally, it has been observed that Gaussian-type membership function controls the vibration fast.