Suppressing Vibration of Flexible Beam by Adaptive Sliding Mode and Back-stepping Control Systems

In this paper two nonlinear control methods are proposed to regulate vibration of flexiblebeam with piezoelectric actuator. The purpose of regulation is achieved by two nonlinear controlmethods: back-stepping and Adaptive sliding mode. The performance of the system by using theabove-mentioned control methods is compared. Experimental results verified the effectiveness ofadaptive sliding mode and back-stepping controllers. From the experimental results, the backsteppingcontrol system suppresses vibration in 5 seconds whiles smooth compensator suppresses in10 seconds along with chattering phenomenon. Therefore, the back-stepping control system moreaccurately attenuates vibration of the beam.

کلیدواژه ها:

Nonlinear control‚ Back-stepping‚ sliding mode ، piezoelectric actuator‚ Hamilton principle ، Smooth compensator