Title:
Adaptive Control of Evolving Gossamer Structures
Adaptive Control of Evolving Gossamer Structures
Author(s)
Yang, Bong-Jun
Calise, Anthony J.
Craig, James I.
Whorton, Mark S.
Calise, Anthony J.
Craig, James I.
Whorton, Mark S.
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Abstract
A solar sail is an example of a gossamer structure that is proposed as an propulsion
system for future space missions. Since it is a large scale flexible structure that requires a
long time for its deployment, active control may be required to prevent it from deviating
into a non-recoverable state. In this paper, we conceptually address control of an evolving
flexible structure using a growing double pendulum model. Controlling an evolving system
poses a major challenge to control design because it involves time-varying parameters,
such as inertia and stiffness. By employing a neural network based adaptive control, we
illustrate that the evolving double pendulum can be effectively regulated when fixed-gain
controllers are deficient due to presence of time-varying parameters.
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Date Issued
2006-08
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Proceedings