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Control System and Flexible Satellite Interaction During Orbit Transfer ManeuverIn this paper the interaction between the attitude control system and the flexible structure of an artificial satellite during orbit transfer maneuver has been investigated. The satellite was modeled by a rigid central body with one or more flexible appendages. The dynamics equations were obtained by Lagrangean approach. The flexible appendages were treated as clamped-free beam and its displacement was discretized by assumed- mode method. In order to transfer the satellite, a typical Hohmann transfer and a burn-coast-burn strategy were used and the attitude was controlled by an on-off controller. During transfer procedure a global analysis of satellite has been done, such as: performance of control system, influence of elastic response in control system, thruster firing frequency, fuel consumption and variation of orbital elements. In order to avoid the interaction with structure motion, a control system with bandwidth of one decade bellow the fundamental frequency was used. In the simulations the firing frequency was evaluated in an approximately way but kept below the fundamental frequency of the structure. The control system has kept the attitude below the specifications. As a result, the orbit transfer maneuvering has been done correctly without excessive excitation of flexible appendage.
Document ID
19980236659
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Adenilson Roberto da Silva
(Instituto Nacional de Pesquisas Espacias Sao Jose dos Campos, Brazil)
Luiz Carlos Gadelha de Souza
(Instituto Nacional de Pesquisas Espacias Sao Jose dos Campos, Brazil)
Date Acquired
August 18, 2013
Publication Date
January 1, 1998
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AAS-98-343
INPE-6749-PRE/2760
Meeting Information
Meeting: Space Flight Dynamics
Location: Greenbelt, MD
Country: US
Start Date: January 1, 1998
Sponsors: American Astronautical Society, Goddard Space Flight Center
Distribution Limits
Public
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