An Active Vibration Control of Beam by Piezoelectric with Fuzzy Approach

Today, the vibration control of structures considers as one of the most important and useful study fields, which requires developing the new ways of control and simulating its effect on flexible structures. Using the piezoelectric sensors and actuators in the purpose of active vibrations control enumerates as one of the most basic devices in designing systems and smart structures. One of the controlling ways, which has been watched an ever-increasing progress, is fuzzy control. This controlling way as one of the active control subdivisions provides some ways to analyze and design the complicated and inaccurate systems. This study presents a study concerning the active vibration control of a smart cantilever beam that is excited by transverse vibrations of the structure that it is clamped to and the clamped end of the beam is experiencing base motion. It has been used fuzzy method in the purpose of designing controller. The electromechanical equations have acquired from energy methods and with Euler-Bernoulli beam theory. In continuation, numerical results have been obtained from an aluminum beam with simulating in MATLAB software. The obtained results show that fuzzy control, in addition to considerable reducing of calculations capacity, has satisfactory function too.