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Helicopter rotor lift distributions for minimum-induced power loss

Publication ,  Journal Article
Hall, SR; Yang, KY; Hall, KC
Published in: Journal of Aircraft
January 1, 1994

A method is described for solving the minimum-induced loss (MIL) rotor design problem. First, the generalized Betz condition for MIL rotors is developed. Because the resulting lift distributions would generally exceed the maximum blade lift coefficient on the retreating side of the rotor, the necessary conditions are extended to include constraints on the lift. A method for solving for the optimum lift distribution using finite elements is described. Numerical results are presented for a typical rotor in forward flight. The MIL rotor may have on the order of 10% less induced power loss than a typical unoptimized rotor. © 1994 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.

Duke Scholars

Published In

Journal of Aircraft

DOI

ISSN

0021-8669

Publication Date

January 1, 1994

Volume

31

Issue

4

Start / End Page

837 / 845

Related Subject Headings

  • Aerospace & Aeronautics
  • 40 Engineering
  • 09 Engineering
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Hall, S. R., Yang, K. Y., & Hall, K. C. (1994). Helicopter rotor lift distributions for minimum-induced power loss. Journal of Aircraft, 31(4), 837–845. https://doi.org/10.2514/3.46569
Hall, S. R., K. Y. Yang, and K. C. Hall. “Helicopter rotor lift distributions for minimum-induced power loss.” Journal of Aircraft 31, no. 4 (January 1, 1994): 837–45. https://doi.org/10.2514/3.46569.
Hall SR, Yang KY, Hall KC. Helicopter rotor lift distributions for minimum-induced power loss. Journal of Aircraft. 1994 Jan 1;31(4):837–45.
Hall, S. R., et al. “Helicopter rotor lift distributions for minimum-induced power loss.” Journal of Aircraft, vol. 31, no. 4, Jan. 1994, pp. 837–45. Scopus, doi:10.2514/3.46569.
Hall SR, Yang KY, Hall KC. Helicopter rotor lift distributions for minimum-induced power loss. Journal of Aircraft. 1994 Jan 1;31(4):837–845.

Published In

Journal of Aircraft

DOI

ISSN

0021-8669

Publication Date

January 1, 1994

Volume

31

Issue

4

Start / End Page

837 / 845

Related Subject Headings

  • Aerospace & Aeronautics
  • 40 Engineering
  • 09 Engineering