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survey of applications of active control technology for gust alleviation and new challenges for lighter-weight aircraftThis report provides a historical survey and assessment of the state of the art in the modeling and application of active control to aircraft encountering atmospheric disturbances in flight. Particular emphasis is placed on applications of active control technologies that enable weight reduction in aircraft by mitigating the effects of atmospheric disturbances. Based on what has been learned to date, recommendations are made for addressing gust alleviation on as the trend for more structurally efficient aircraft yields both lighter and more flexible aircraft. These lighter more flexible aircraft face two significant challenges reduced separation between rigid body and flexible modes, and increased sensitivity to gust encounters due to increased wing loading and improved lift to drag ratios. The primary audience of this paper is engineering professionals new to the area of gust load alleviation and interested in tackling the multifaceted challenges that lie ahead for lighter-weight aircraft.
Document ID
20120013450
Document Type
Technical Memorandum (TM)
Authors
Regan, Christopher D.
(NASA Dryden Flight Research Center Edwards, CA, United States)
Jutte, Christine V.
(NASA Dryden Flight Research Center Edwards, CA, United States)
Date Acquired
August 26, 2013
Publication Date
April 1, 2012
Subject Category
Aircraft Stability and Control
Report/Patent Number
DFRC-E-DAA-TN4736
NASA/TM-2012-216008
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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