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Aeroelastic passive control optimization of supersonic composite wing with external stores

Sulaeman, Erwin and Abdullah, Nur Azam and Kashif, Syed Muhammad (2016) Aeroelastic passive control optimization of supersonic composite wing with external stores. In: 3rd International Conference on Mechanical, Automotive and Aerospace Engineering 2016 (ICMAAE’16), 25th-27th July 2016, Kuala Lumpur, Malaysia.

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Abstract

This paper provides a study on passive aeroelastic control optimization, by means of aeroelastic tailoring, of a composite supersonic wing equipped with external stores. The objective of the optimization is to minimize wing weight by considering the aeroelastic flutter and divergence instability speeds as constraints at several flight altitudes. The optimization variables are the composite ply angle and skin thickness of the wing box, wing rib and its control surfaces. The aeroelastic instability speed is set as constraint such that it should be higher than the flutter speed of a metallic base line model of supersonic wing having previously published. A finite element analysis is applied to determine the stiffness and mass matric of the wing and its multi stores. The boundary element method in the form of doublet lattice method is used to model the unsteady aerodynamic load. The results indicate that, for the present wing configuration, the high modulus Graphite/Epoxy composite provides a desired higher flutter speed and lower wing weight compare to that of Kevlar/Epoxy composite as well as the base line metallic wing materials. The aeroelastic boundary thus can be enlarged to higher speed zone and in the same time reduce the structural weight which is important for a further optimization process.

Item Type: Conference or Workshop Item (Plenary Papers)
Additional Information: 6427/53833
Uncontrolled Keywords: Aeroelasticity, Aerospace engineering, Boundary element method, Finite element method, Flutter (aerodynamics), Graphite epoxy composites, Sailing vessels, Speed, Supersonic aircraf, tWings
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500 Aeronautics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Dr Erwin Sulaeman
Date Deposited: 15 Jun 2017 13:13
Last Modified: 23 May 2018 10:17
URI: http://irep.iium.edu.my/id/eprint/53833

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