Design and Control of Libration Point Spacecraft Formations

2004 ◽  
Author(s):  
Samantha Infeld ◽  
Scott Josselyn ◽  
Walter Murray ◽  
Isaac Ross
Keyword(s):  
Libration Point ◽  
Spacecraft Formations ◽  
And Control

Design and Control of Libration Point Spacecraft Formations

2007 ◽  
Vol 30 (4) ◽  
pp. 899-909 ◽  
Author(s):  
Samantha I. Infeld ◽  
Scott B. Josselyn ◽  
Walter Murray ◽  
I. Michael Ross
Keyword(s):  
Libration Point ◽  
Spacecraft Formations ◽  
And Control

Relative Dynamics and Control of Spacecraft Formations in Eccentric Orbits

2002 ◽  
Vol 25 (1) ◽  
pp. 48-59 ◽  
Author(s):  
Gokhan Inalhan ◽  
Michael Tillerson ◽  
Jonathan P. How
Keyword(s):  
Eccentric Orbits ◽  
Relative Dynamics ◽  
Dynamics And Control ◽  
Spacecraft Formations ◽  
And Control

scholarly journals A Comparative Study of Formation Control at the Earth-Moon L₂ Libration Point

2021 ◽  
Author(s):  
Waqas A. Manzoor
Keyword(s):  
Formation Control ◽  
Controller Design ◽  
Libration Point ◽  
Control Strategies ◽  
Control Input ◽  
Control Methods ◽  
Space Applications ◽  
Affine Systems ◽  
The Earth ◽  
And Control

This thesis examines the performance of control methods that fall under the optimal, predictive and adaptive classifications, subjected to sensor/actuator faults, and presents approaches to apply them to non-affine systems utilizing single thruster and solar sail actuator configurations. The system of interest consists of a leader-follower satellite formation near the L2 point of the Earth-Moon system. The control methods studied here include those which are emerging in the space systems literature, and are evaluated in terms of their transient and steady state responses, and control input variation. Numerical simulation of faults affecting both sensor and propulsion actuator systems are conducted, along with an experiment to validate the results in a laboratory environment. The observed behavioral characteristics in the simulations match those demonstrated in the experiment. Alternative representations of dynamics were explored for controller design of non-affine systems. The research presented herein provides support for the usage of the proposed control strategies in future space applications.

scholarly journals A Comparative Study of Formation Control at the Earth-Moon L₂ Libration Point

2021 ◽  
Author(s):  
Waqas A. Manzoor
Keyword(s):  
Formation Control ◽  
Controller Design ◽  
Libration Point ◽  
Control Strategies ◽  
Control Input ◽  
Control Methods ◽  
Space Applications ◽  
Affine Systems ◽  
The Earth ◽  
And Control

This thesis examines the performance of control methods that fall under the optimal, predictive and adaptive classifications, subjected to sensor/actuator faults, and presents approaches to apply them to non-affine systems utilizing single thruster and solar sail actuator configurations. The system of interest consists of a leader-follower satellite formation near the L2 point of the Earth-Moon system. The control methods studied here include those which are emerging in the space systems literature, and are evaluated in terms of their transient and steady state responses, and control input variation. Numerical simulation of faults affecting both sensor and propulsion actuator systems are conducted, along with an experiment to validate the results in a laboratory environment. The observed behavioral characteristics in the simulations match those demonstrated in the experiment. Alternative representations of dynamics were explored for controller design of non-affine systems. The research presented herein provides support for the usage of the proposed control strategies in future space applications.

scholarly journals An Adaptive Remeshing Procedure for Proximity Maneuvering Spacecraft Formations

2012 ◽  
Vol 2012 ◽  
pp. 1-14
Author(s):  
Laura Garcia-Taberner ◽  
Josep J. Masdemont
Keyword(s):  
Variational Method ◽  
Libration Point ◽  
Time Interval ◽  
Adaptive Remeshing ◽  
Local Solutions ◽  
Spacecraft Formations ◽  
Maneuvering Spacecraft

We consider a methodology to optimally obtain reconfigurations of spacecraft formations. It is based on the discretization of the time interval in subintervals (called the mesh) and the obtainment of local solutions on them as a result of a variational method. Applied to a libration point orbit scenario, in this work we focus on how to find optimal meshes using an adaptive remeshing procedure and on the determination of the parameter that governs it.

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