Active flutter suppression - Control system design and experimental validationThe synthesis and experimental validation of an active flutter suppression controller for the Active Flexible Wing wind-tunnel model is presented. The design is accomplished with traditional root locus and Nyquist methods using interactive computer graphics tools and with extensive use of simulation-based analysis. The design approach uses a fundamental understanding of the flutter mechanism to formulate a simple controller structure to meet stringent design specifications. Experimentally, the flutter suppression controller succeeded in simultaneous suppression of two flutter modes, significantly increasing the flutter dynamic pressure despite errors in flutter dynamic pressure and flutter frequency in the mathematical model. The flutter suppression controller was also successfully operated in combination with a roll maneuver controller to perform flutter suppression during rapid rolling maneuvers.
Document ID
19910064982
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Waszak, Martin R. (NASA Langley Research Center Hampton, VA, United States)
Srinathkumar, S. (National Aeronautical Laboratory Bangalore, India)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Subject Category
Aircraft Stability And Control
Report/Patent Number
AIAA PAPER 91-2629
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference