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Aircraft control surface deflection using RBF-based mesh deformation

Michler, Andreas K. (2011) Aircraft control surface deflection using RBF-based mesh deformation. International Journal for Numerical Methods in Engineering, 88 (10), pp. 986-1007. Wiley. DOI: 10.1002/nme.3208

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/nme.3208/abstract

Abstract

In this paper, mesh deformation based on radial basis function (RBF) interpolation is applied to the deflection of aircraft control surfaces. A confinement technique is presented, which locally restricts mesh deformation to the vicinity of the moving component and leaves the surfaces of other components unaffected. This technique is shown to have the potential to significantly reduce the CPU time necessary for evaluating the RBF interpolants. Motivated by the directionality of control surface deflection, the idea of treating each direction of the displacements separately is introduced. It is employed for the adaptive selection of centers, and the approach termed sequential uni-variate center adaptation. It is shown to be more efficient for both solution and evaluation processes than the standard approach, in which the same set of centers is used for every direction. Furthermore, different data sites may be imposed for different directions. It is demonstrated that this enables sliding motion of the elements on the face of a mesh block. Thereby, large control surface deflections are possible, despite the presence of a small spanwise gap between control surface and parent component. These techniques are successfully applied to the deflection of aileron and horizontal tail of a generic fighter aircraft configuration.

Item URL in elib:https://elib.dlr.de/74903/
Document Type:Article
Additional Information:Article first published online: 3 MAY 2011 at http://onlinelibrary.wiley.com/doi/10.1002/nme.3208/abstract Issue published online: 7 NOV 2011
Title:Aircraft control surface deflection using RBF-based mesh deformation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Michler, Andreas K.andreas.michler (at) dlr.deUNSPECIFIED
Date:2011
Journal or Publication Title:International Journal for Numerical Methods in Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:88
DOI :10.1002/nme.3208
Page Range:pp. 986-1007
Publisher:Wiley
Status:Published
Keywords:mesh deformation; radial basis functions; aircraft control surface deflection; local confinement; center adaptation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Michler, Andreas
Deposited On:14 Feb 2012 11:13
Last Modified:08 Mar 2018 18:37

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