Absolute nodal coordinate formulation for aeroelastic analysis of panel

Abbas, L, Rui, X and Marzocca, P 2012, 'Absolute nodal coordinate formulation for aeroelastic analysis of panel', Advanced Materials Research, vol. 588589, pp. 1817-1821.

Document type: Journal Article
Collection: Journal Articles

Title Absolute nodal coordinate formulation for aeroelastic analysis of panel
Author(s) Abbas, L
Rui, X
Marzocca, P
Year 2012
Journal name Advanced Materials Research
Volume number 588589
Start page 1817
End page 1821
Total pages 5
Publisher Scientific.Net
Abstract This paper deals with supersonic/hypersonic flutter analysis of panels. A 3-D rectangular plate element of variable thickness based on absolute nodal coordinate formulation (ANCF) has been developed for the structural model. A continuum mechanics approach for the definition of the elastic forces within the finite element is considered. Both shear strain and transverse normal strain are taken into account. The aerodynamic force is evaluated by considering the first-order piston theory to linearize the potential flow and is coupled with the structural model to account for pressure loading. A provision is made to take into account the effect of arbitrary flow directions with respect to the panel edges. Aeroelastic equations using ANCF are derived and solved numerically. Values of critical dynamic pressure are obtained by a modal approach, in which the mode shapes are obtained by ANCF. A detailed parametric study is carried out to observe the effects of different flow angle directions and aspect ratios on the flutter boundary.
Subject Aerospace Engineering not elsewhere classified
Keyword(s) Absolute nodal coordinate formulation (ANCF)
Flow angularity
Panel flutter
DOI - identifier 10.4028/www.scientific.net/AMR.588-589.1817
Copyright notice © (2012) Trans Tech Publications, Switzerland.
ISSN 1022-6680
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