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- W1617370446 abstract "Wavy-planform rotor blades for helicopters have been investigated for the first time in an effort to reduce noise. Two of the main sources of helicopter noise are blade/vortex interaction (BVI) and volume displacement. (The noise contributed by volume displacement is termed thickness noise.) The reduction in noise generated by a wavyplanform blade, relative to that generated by an otherwise equivalent straight-planform blade, affects both main sources: (1) the BVI noise is reduced through smoothing and defocusing of the aerodynamic loading on the blade and (2) the thickness noise is reduced by reducing gradients of thickness with respect to listeners on the ground." @default.
- W1617370446 created "2016-06-24" @default.
- W1617370446 creator A5036831392 @default.
- W1617370446 date "2004-02-01" @default.
- W1617370446 modified "2023-09-27" @default.
- W1617370446 title "Wavy-Planform Helicopter Blades Make Less Noise" @default.
- W1617370446 hasPublicationYear "2004" @default.
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