TY - GEN
T1 - Nonlinear attitude dynamics and control for satellite tethered formation flying in three-dimensional free space
AU - Chang, Insu
AU - Park, Sang Young
AU - Choi, Kyu Hong
PY - 2008
Y1 - 2008
N2 - The objective of the current research is to analyze the attitude dynamics and control of satellite tethered formation flying where the tethered units are modeled as extended rigid bodies. The three inline array system is used and the general formulation of the governing equations of motions of the system is obtained through a Lagrangian approach. In the research, attitude motions of the tethered satellite system are analyzed in the three-dimensional free space system to complement previous works. Centralized and decentralized approaches are applied to the dynamic system to compare the performance for controlling the attitude motion. The State-Dependent Riccati Equation (SDRE) controller is used to regulate the attitude errors. The stability region for the SDRE controlled tethered satellite system is estimated using a numerical method. The results show globally asymptotic stability for the control method.
AB - The objective of the current research is to analyze the attitude dynamics and control of satellite tethered formation flying where the tethered units are modeled as extended rigid bodies. The three inline array system is used and the general formulation of the governing equations of motions of the system is obtained through a Lagrangian approach. In the research, attitude motions of the tethered satellite system are analyzed in the three-dimensional free space system to complement previous works. Centralized and decentralized approaches are applied to the dynamic system to compare the performance for controlling the attitude motion. The State-Dependent Riccati Equation (SDRE) controller is used to regulate the attitude errors. The stability region for the SDRE controlled tethered satellite system is estimated using a numerical method. The results show globally asymptotic stability for the control method.
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M3 - Conference contribution
AN - SCOPUS:60349098428
SN - 9780877035442
T3 - Advances in the Astronautical Sciences
SP - 779
EP - 798
BT - Space Flight Mechanics 2008 - Advances in the Astronautical Sciences, Proceedings of the AAS/AIAA Space Flight Mechanics Meeting
T2 - 18th Annual Space Flight Mechanics Meeting
Y2 - 27 January 2008 through 31 January 2008
ER -