Title :
Identification of a Hammerstein model for wing flutter analysis using CFD data and correlation method
Author :
Kai-Yew Lum ; Kwok Leung Lai
Author_Institution :
Temasek Labs., Nat. Univ. of Singapore, Singapore, Singapore
fDate :
June 30 2010-July 2 2010
Abstract :
A correlation approach for the identification of a Hammerstein model of unsteady aerodynamics using CFD data is presented. The main idea is to use correlation functions of the input-output processes as data for the identification problem. It is shown in a numerical example of the AGARD 445.6 wing that the proposed method can more accurately approximate the linear aerodynamic response, which is needed for a first-order prediction of wing flutter boundaries.
Keywords :
aerodynamics; aerospace components; boundary layers; computational fluid dynamics; vibrations; AGARD 445.6 wings; CFD; Hammerstein model; correlation method; flutter analysis; flutter boundaries; identification problem; unsteady aerodynamics; Aerodynamics; Aircraft; Computational fluid dynamics; Computational modeling; Computer aided engineering; Correlation; Data analysis; Navier-Stokes equations; Read only memory; Testing;
Conference_Titel :
American Control Conference (ACC), 2010
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-7426-4
DOI :
10.1109/ACC.2010.5531153
