C-SIDE: Control-Structure Integration Demonstration Experiment
Abstract
The Control-Structure Integration (CSI) technologies that have developed over the past decade provide the capability to use high performance control systems with lightweight, flexible structures. The CSI methodology described here provides the means to break the test-and-redesign cycle typical for modern model-based control methods and to reduce operational risk for high performance systems. These benefits are made possible by separating the controller into two independent functions: the reduced order model-based (ROM) controller designed to deliver the desired performance. The ROM-RMF methodology is currently being used on the Control-Structure Integration Demonstration Experiemnt (C-SIDE), an internal research project. The C-SIDE is a testbed that implements figure control for a flexible primary structure using a passive secondary reaction structure, unobtrusive position sensing, non-contacting linear force actuators, and a digital control processor. The goal for the figure control system is to maintain physical flatness of the facesheet to within +/- 1 millimeter. Empirical system identification results and the control strategy are presented.
- Publication:
-
NASA STI/Recon Technical Report A
- Pub Date:
- 1993
- Bibcode:
- 1993STIA...9580418M
- Keywords:
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- Antenna Design;
- Control Systems Design;
- Feedback Control;
- Large Space Structures;
- Spacecraft Antennas;
- Spacecraft Control;
- Systems Integration;
- Test Stands;
- Controllers;
- Numerical Control;
- Spacecraft Design;
- Communications and Radar