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LPV Modeling and Control for Active Flutter Suppression of a Smart AirfoilIn this paper, a novel technique of linear parameter varying (LPV) modeling and control of a smart airfoil for active flutter suppression is proposed, where the smart airfoil has a groove along its chord and contains a moving mass that is used to control the airfoil pitching and plunging motions. The new LPV modeling technique is proposed that uses mass position as a scheduling parameter to describe the physical constraint of the moving mass, in addition the hard constraint at the boundaries is realized by proper selection of the parameter varying function. Therefore, the position of the moving mass and the free stream airspeed are considered the scheduling parameters in the study. A state-feedback based LPV gain-scheduling controller with guaranteed H infinity performance is presented by utilizing the dynamics of the moving mass as scheduling parameter at a given airspeed. The numerical simulations demonstrate the effectiveness of the proposed LPV control architecture by significantly improving the performance while reducing the control effort.
Document ID
20180000773
Document Type
Conference Paper
Authors
Al-Hajjar, Ali M. H. (Michigan State Univ. East Lansing, MI, United States)
Al-Jiboory, Ali Khudhair (Michigan State Univ. East Lansing, MI, United States)
Swei, Sean Shan-Min (NASA Ames Research Center Moffett Field, CA, United States)
Zhu, Guoming (Michigan State Univ. East Lansing, MI, United States)
Date Acquired
January 26, 2018
Publication Date
January 8, 2018
Subject Category
Aeronautics (General)
Report/Patent Number
ARC-E-DAA-TN50213
Meeting Information
American Institute of Aeronautics and Astronautics (AIAA) SciTech Forum(Kissimmee, FL)
Funding Number(s)
CONTRACT_GRANT: NNX15AR80G
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Smart Airfoil
Linear Parameter Varying Contro
Linear Matrix Inequality

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