Vibration control of a Plate with help of Fuzzy Logic Controller

The purpose of this work is to control the vibration of the plate with the help of fuzzy logic controller. A finite element model of a two-dimensional plate instrumented with a piezoelectric patches sensor-actuator pair is derived. As mesh size (8x8) is found best for the future modeling and analysis of the plate has been taken. The contribution of piezoelectric sensor and actuator layers on the mass and stiffness of the plate is considered. Fuzzy logic optimal control scheme have been designed to study the control effectiveness. Tip displacement and tip velocity are taken as the inputs and the control forces are taken as the output to tune the fuzzy logic controller. The fuzzy logic controller consists of nine rules. It is observed that fuzzy logic controller is found suitable and give effective control to suppress the first three modes of vibration of plate.