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Suppression of Transmitted Harmonic Rotor Loads by Blade Pitch Control

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Abstract:

A study is made of the possibility of using higher harmonic pitch angle inputs to suppress the transmission of oscillatory vertical forces from a helicopter rotor to its driving shaft. The aerodynamic loads that are the source of the objectionable forces are computed using a realistic model which represents the rotor blades by bound vorticity distributions and the wake by a mesh of segmented vortex filaments.

Document Type: Research Article

DOI: https://doi.org/10.4050/JAHS.13.65

Affiliations: Cornell Aeronautical Laboratory, Inc., Buffalo, New York

Publication date: 1968-04-01

More about this publication?
  • The Journal of the American Helicopter Society is the world's only scientific journal dedicated to vertical flight technology. It is a peer-reviewed technical journal published quarterly by AHS International and presents innovative papers covering the state-of-the-art in all disciplines of rotorcraft design, research and development. (Please note that AHS members receive significant discounts on articles and subscriptions.)

    Journal subscribers who are AHS members log in here if you are not already logged in.

    Authors can find submission guidelines and related information on the AHS website.

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