Advances in aircraft and spacecraft science

  • 제4권2호
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  • Pages.93-124
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  • 2017
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  • 2287-528X(pISSN)
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  • 2287-5271(eISSN)
테크노프레스 (Techno-Press)
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Aeroelastic tailoring using crenellated skins-modelling and experiment

  • Francois, Guillaume (Department of Aerospace Engineering, University of Bristol) ;
  • Cooper, Jonathan E. (Department of Aerospace Engineering, University of Bristol) ;
  • Weaver, Paul M. (Department of Aerospace Engineering, University of Bristol)
  • 투고 : 2015.10.30
  • 심사 : 2016.03.08
  • 발행 : 2017.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Aeroelastic performance controls wing shape in flight and its behaviour under manoeuvre and gust loads. Controlling the wing‟s aeroelastic performance can therefore offer weight and fuel savings. In this paper, the rib orientation and the crenellated skin concept are used to control wing deformation under aerodynamic load. The impact of varying the rib/crenellation orientation, the crenellation width and thickness on the tip twist, tip displacement, natural frequencies, flutter speed and gust response are investigated. Various wind-off and wind-on loads are considered through Finite Element modelling and experiments, using wings manufactured through polyamide laser sintering. It is shown that it is possible to influence the aeroelastic behaviour using the rib and crenellation orientation, e.g., flutter speed increased by up to 14.2% and gust loads alleviated by up to 6.4%. A reasonable comparison between numerical and experimental results was found.

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과제정보

연구 과제 주관 기관 : ACCIS Centre for Doctoral Training

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피인용 문헌

  1. Flutter characteristics of axially functional graded composite wing system vol.7, pp.4, 2017, https://doi.org/10.12989/aas.2020.7.4.353