Accession Number : ADP003395

Title :   Attitude Control of Large Flexible Spacecraft,

Corporate Author : DORNIER SYSTEM G M B H FRIEDRICHSHAFEN (GERMANY F R)

Personal Author(s) : Thieme,G.

Report Date : JAN 1984

Pagination or Media Count : 15

Abstract : This paper presents some results found during the investigation of control problems of large flexible spacecraft*. A triple plate configuration of such a spacecraft is defined and studied. The model is defined by modal data derived from finite element modelling. The order reduction methods applied are briefly described and results of order reduction are presented. An attitude control concept with low and high authority control has been used to design an attitude controller for the reduced model. The stability and response of the original system together with the reduced controller is analysed. (Author)

Descriptors :   *Attitude control systems, *Satellite attitude, *Space systems, Spacecraft components, Mathematical models, Finite element analysis, Spacecraft docking

Distribution Statement : APPROVED FOR PUBLIC RELEASE