%0 Journal Article %T ACTIVE VIBRATION SUPPRESSION AND MANEUVER CONTROL OF AN ORBITING SMART FLEXIBLE SATELLITE %J Iranian Journal of Science and Technology Transactions of Mechanical Engineering %I Shiraz University %Z 2228-6187 %D 2014 %\ 04/01/2014 %V 38 %N M1 %P 119-133 %! ACTIVE VIBRATION SUPPRESSION AND MANEUVER CONTROL OF AN ORBITING SMART FLEXIBLE SATELLITE %K Smart flexible satellite %K orbital maneuver %K adaptive inverse dynamics control %K singular perturbation theory %K active vibration %R 10.22099/ijstm.2014.1933 %X In this paper, vibration suppression and control of a smart flexible satellitemaneuvering in a circular orbit are studied. The satellite is considered as a rigid hub and twoflexible appendages with PZT (lead zirconate titanate) layers attached on them as sensors andactuators. Flexible satellite governing equations of motion are obtained using Lagrange-Rayleigh-Ritz technique and assumed mode method; these dynamic equations of motion of the flexiblesatellite are nonlinear and coupled. A thorough look at the resulting equations reveals that theflexible satellite dynamics that include the appendage vibrations and its rigid maneuver occur intwo different time scales. Therefore, the dynamics of the flexible satellite can be divided into twofast and slow subsystems using the singular perturbation theory. The slow and fast subsystems areassociated with rigid maneuver and appendages vibrations, respectively. A hybrid controller isproposed which consists of an adaptive inverse dynamics for slow subsystem maneuvering control,and a Lyapunov based controller for vibration suppression of the fast subsystem. Use of adaptivecontroller allows us to cope with parameters uncertainty for the rigid motion of the system. Usingthe Lyapunov approach the stability of these hybrid controllers is studied. Finally, the wholesystem is simulated and the simulation results show the effective performance of the proposedhybrid controller. %U https://ijstm.shirazu.ac.ir/article_1933_1ae99d0deafdcc7cef284bdc0b5687b2.pdf