In-plane payload capture with an elastic tether

Williams, P 2006, 'In-plane payload capture with an elastic tether', Journal of Guidance, Control and Dynamics, vol. 29, no. 4, pp. 810-821.


Document type: Journal Article
Collection: Journal Articles

Title In-plane payload capture with an elastic tether
Author(s) Williams, P
Year 2006
Journal name Journal of Guidance, Control and Dynamics
Volume number 29
Issue number 4
Start page 810
End page 821
Total pages 12
Publisher American Institute of Aeronautics and Astronautics
Abstract The capture of payloads using tethers is a challenging task from a control point of view. In previous studies on coplanar capture, the precapture control design has been achieved by assuming that the tether is inextensible. However, the effect of tether longitudinal vibrations can cause errors in the position and velocity of the tether tip. Furthermore, the extra mass at the tip of the tether can induce longitudinal vibrations with significant amplitude that ultimately cause the tether to become slack. A guidance scheme based on optimal control methodology that can achieve rendezvous with a payload using a longitudinally flexible tether is demonstrated. Rather than treating the precapture and postcapture phases separately, an integrated control scheme is developed that successfully guides the tether to achieve rendezvous with a payload and then simultaneously damps the tether librations and longitudinal vibrations. Closed-loop performance of the system is demonstrated using a receding-horizon control strategy.
Subject Flight Dynamics
Keyword(s) Transport-System
Orbital Transfer
Optimization
Collocation
Satellites
Deployment
Guidance
DOI - identifier 10.2514/1.17474
Copyright notice © 2005 by Paul Williams
ISSN 0731-5090
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