Nonlinear Momentum and Attitude-control of a Space Station Accommodating Periodic Aerodynamic Disturbance

Document Type

Article

Publication Date

3-1995

Publication Title

Acta Astronautica

Volume

35

Issue

6

First page number:

391

Last page number:

402

Abstract

This paper considers non-linear regulation and angular momenta management of a Space Station in the presence of a disturbance torque. The sinusoidal aerodynamic disturbance torque is treated as the output of an exosystem. An output zeroing submanifold for the regulation of pitch angle and roll and yaw axis control moment gyro (CMG) angular momenta is obtained. A control law is derived such that in the closed-loop system the trajectories converge to this manifold and the desired equilibrium state is attained. For the synthesis of the controller, the states associated with the exosystem are generated using measurements of the attitude angles and angular rates. Simulation results are presented to show that in the closed-loop system, pitch attitude regulation and CMG momenta management are accomplished in spite of the presence of the aerodynamic disturbance inputs and parameter uncertainty.

Keywords

Angular momentum; Control theory; Gyrostabilizers; Space stations--Attitude control systems

Disciplines

Aerospace Engineering | Controls and Control Theory | Navigation, Guidance, Control and Dynamics

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

UNLV article access

Search your library

Share

COinS