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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2018, Vol. 39 ›› Issue (4): 21603-021603.doi: 10.7527/S1000-6893.2018.21603

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Research progress in performance of adaptive rotor

HAN Dong, DONG Chen, WEI Wulei, SANG Yuwei   

  1. National Key Laboratory of Science and Technology on Rotorcraft Aeromechanics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2017-07-12 Revised:2018-01-16 Online:2018-04-15 Published:2018-01-16
  • Supported by:
    National Natural Science Foundation of China (11472129); Foundation of National Key Laboratory of Science and Technology on Rotorcraft Aeromechanics (6142220050416220002); Aeronautical Science Foundation of China (20165752048); Foundation of Graduate Innovation Center in NUAA (KFJJ20170102); the Fundamental Research Funds for the Central Universities

Abstract: The design of the adaptive rotor is different from that of the conventional passive rotor. By actively changing the rotor parameters, the rotor lift-to-drag ratio can be optimized to get adaptive to the flight environment and flight condition, so as to reduce the power consumption of the rotor and improve the flight performance of the helicopter. This paper summarizes national and international research progress in using adaptive rotors to improve the performance of the rotor, including the variable speed rotor, variable diameter rotor, individual blade pitch control rotor, active twist rotor, morphing blade airfoil, etc. The research progress and prospects in performance improvement by adaptive rotors are also summarized.

Key words: helicopter, rotor, adaptive, performance, research progress

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