DESIGN OF A MULTIVARIABLE FLUTTER CONTROL/GUST LOAD ALLEVIATION SYSTEM.

B. S. Liebst, W. L. Garrard, Jerome A. Farm

Research output: Contribution to journalArticlepeer-review

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Abstract

This paper discusses the use of eigenspace techniques for the design of an active flutter control/gust, load alleviation system for a hypothetical research drone. One leading edge and two trailing edge aerodynamic surfaces are available for control. Full state control laws are designed for two combinations of control surfaces by selecting feedback gains which place closed loop eigenvalues and shape closed loop eigenvectors so as to stabilize wing flutter and reduce gust loads at the wing root while yielding acceptable robustness and satisfying constraints on rms control surface activity. These controllers are realized by state estimators designed using an eigenvalue placement/eigenvector shaping technique which results in recovery of the loop transfer characteristics of the full state feedback systems.

Original languageEnglish (US)
Pages (from-to)835-847
Number of pages13
JournalAIAA Paper
StatePublished - Dec 1 1986

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