NDLI: An advanced buffet load alleviation system

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An advanced buffet load alleviation system

Content Provider	NASA Technical Reports Server (NTRS)
Author	Pitt, Dale M. Henderson, Douglas A. Burnham, Jay K. White, Edward V. Moses, Robert W.
Copyright Year	2001
Description	This paper describes the development of an advanced buffet load alleviation (BLA) system that utilizes distributed piezoelectric actuators in conjunction with an active rudder to reduce the structural dynamic response of the F/A-18 aircraft vertical tails to buffet loads. The BLA system was defined analytically with a detailed finite-element-model of the tail structure and piezoelectric actuators. Oscillatory aerodynamics were included along with a buffet forcing function to complete the aeroservoelastic model of the tail with rudder control surface. Two single-input-single-output (SISO) controllers were designed, one for the active rudder and one for the active piezoelectric actuators. The results from the analytical open and closed loop simulations were used to predict the system performance. The objective of this BLA system is to extend the life of vertical tail structures and decrease their life-cycle costs. This system can be applied to other aircraft designs to address suppression of structural vibrations on military and commercial aircraft.
File Size	808455
Page Count	11
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20010070048
Archival Resource Key	ark:/13960/t3324wf5r
Language	English
Publisher Date	2001-01-01
Access Restriction	Open
Subject Keyword	Aircraft Stability And Control Dynamic Response Tail Assemblies Finite Element Method Piezoelectric Actuators Aerial Rudders F-18 Aircraft Buffeting Siso Control Systems Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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