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Mathematical Problems in Engineering
Volume 2013, Article ID 284869, 11 pages
http://dx.doi.org/10.1155/2013/284869
Research Article

Sliding Mode Control for Mass Moment Aerospace Vehicles Using Dynamic Inversion Approach

College of Automation, Harbin Engineering University, Harbin 150001, China

Received 26 July 2013; Accepted 28 August 2013

Academic Editor: Rongni Yang

Copyright © 2013 Xiao-Yu Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The moving mass actuation technique offers significant advantages over conventional aerodynamic control surfaces and reaction control systems, because the actuators are contained entirely within the airframe geometrical envelope. Modeling, control, and simulation of Mass Moment Aerospace Vehicles (MMAV) utilizing moving mass actuators are discussed. Dynamics of the MMAV are separated into two parts on the basis of the two time-scale separation theory: the dynamics of fast state and the dynamics of slow state. And then, in order to restrain the system chattering and keep the track performance of the system by considering aerodynamic parameter perturbation, the flight control system is designed for the two subsystems, respectively, utilizing fuzzy sliding mode control approach. The simulation results describe the effectiveness of the proposed autopilot design approach. Meanwhile, the chattering phenomenon that frequently appears in the conventional variable structure systems is also eliminated without deteriorating the system robustness.