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Aerospace Design Group

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Author: Yang, Bong-Jun × End date: 2004 × Start date: 2003 × Has files: Yes × search.filters.applied.f.isOrgUnitOfPublicationTitle: College of Engineering × search.filters.applied.f.isOrgUnitOfPublicationTitle: Daniel Guggenheim School of Aerospace Engineering × Type: Text × search.filters.applied.f.resourcesubtype: Article ×

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Augmenting Adaptive Approach to Control of Flexible Systems

2004 , Calise, Anthony J. , Yang, Bong-Jun , Craig, James I.

This paper describes an approach for augmenting a linear controller design with a neural-network-based adaptive element. The basic approach involves formulating an architecture for which the associated error equations have a form suitable for applying existing results for adaptive output feedback control of nonlinear systems. The approach is applicable to non-affine, nonlinear systems with both parametric uncertainties and unmodelled dynamics. The effect of actuator limits are treated using control hedging. The approach is particularly well suited for control of flexible systems subject to limits in control authority. Its effectiveness is tested on a laboratory experiment consisting of a three-disk torsional pendulum system, including control voltage saturation and stiction.

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