publication . Article . 2015

Performance improvement of small-scale rotors by passive blade twist control

Peng Lv; Sebastien Prothin; Jean-Marc Moschetta; Fazila Mohd-Zawawi; Joseph Morlier; Emmanuel Benard;
Open Access
  • Published: 01 May 2015 Journal: Journal of Fluids and Structures, volume 55, pages 25-41 (issn: 0889-9746, Copyright policy)
  • Publisher: Elsevier BV
  • Country: France
Abstract
International audience; A passive twist control is proposed as an adaptive way to maximize the overall efficiency of the small-scale rotor blade for multifunctional aircrafts. Incorporated into a database of airfoil characteristics, Blade Element Momentum Theory is implemented to obtain the blade optimum twist rates for hover and forward flight. In order to realize the required torsion of blade between hover and forward flight, glass/epoxy laminate blade is proposed based on Centrifugal Force Induced Twist concept. Tip mass is used to improve the nose-down torsion and the stabilization of rotating flexible blade. The laminate blades are tested in hover and forwa...
Subjects
arXiv: Physics::Fluid Dynamics
free text keywords: Mechanical Engineering, Mécanique des fluides, Small-scale, Flexible blade, Tip mass, Laser Displacement Sensor, [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph], Rotor (electric), law.invention, law, Torsion (mechanics), Fluid–structure interaction, Centrifugal force, Blade element theory, Deformation (mechanics), Structural engineering, business.industry, business, Blade element momentum theory, Airfoil, Engineering
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