Roll control of a male uav using,theadaptive torsion wing

R. M. Ajaj, M. I. Friswell, W. G. Dettmer, A. T. Isikveren, G. Allegri

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


This paper assesses the feasibility of the Adaptive Torsion Wing (ATW) concept to replace conventional ailerons and enhance the manoeuvrability of a MALE UAV. The ATW concept is a thin-walled closed section two-spar wingbox whose torsional stiffness can be adjusted through the chord-wise position of the front and rear spar webs. The reduction in torsional stiffness allows external aerodynamic loads to induce aeroelastic twist that can be used as a function of the flight conditions to obtain a desired roll control authority. Modelling of the concept was performed using TM a conceptual design tool developed in MATLAB . The variation of structural figures of merit are evaluated and discussed. Finally, an MDO study was performed to have in-depth assessments of the potential benefits of the ATW in replacing ailerons and providing sufficient roll control.

Original languageBritish English
Pages (from-to)299-314
Number of pages16
JournalAeronautical Journal
Issue number1189
StatePublished - Mar 2013


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