New approach to attitude/momentum control for the Space Station
| Autor: | J. Sunkel, V. W. Warren, David Geller, Kuk-Whan Byun, Bong Wie, D. Long |
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| Rok vydání: | 1989 |
| Předmět: |
Momentum (technical analysis)
Engineering business.industry Applied Mathematics Aerospace Engineering Control engineering Linear-quadratic regulator Momentum theory Attitude control Control moment gyroscope Gain scheduling Space and Planetary Science Control and Systems Engineering Control theory Full state feedback Torque Electrical and Electronic Engineering business |
| Zdroj: | Journal of Guidance, Control, and Dynamics. 12:714-722 |
| ISSN: | 1533-3884 0731-5090 |
| DOI: | 10.2514/3.20466 |
| Popis: | A new approach to control moment gyro (CMG) momentum management and attitude control of the space station is presented. The control algorithm utilizes both the gravity-gradient and gyroscopic torques to seek torque equilibrium attitude in the presence of secular and cyclic disturbances. It is shown that, depending on mission requirements, either pitch attitude or pitch-axis CMG momentum can be held constant. It is also shown that a combination of yaw attitude and roll-axis CMG momentum can be held constant, whereas a combination of roll attitude and yaw-axis CMG momentum cannot. As a result, the overall attitude and CMG momentum oscillations caused by cyclic aerodynamic disturbances are minimized. A state feedback controller with minimal computer storage requirements for gain scheduling is also presented. An inherent physical property of the coupled roll/yaw dynamics is discussed in terms of a transmission zero of a multivariable system. |
| Databáze: | OpenAIRE |
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