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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2018, Vol. 39 ›› Issue (9): 421966-421979.doi: 10.7527/S1000-6893.2018.21966

• Material Engineering and Mechanical Manufacturing • Previous Articles     Next Articles

Energy consumption comparative analysis and research of flapping wing vehicle with elastic damping flapping mechanism

ZHANG Wei1,2, LIU Guangze1, ZHANG Boli3   

  1. 1. College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China;
    2. Aviation Ground Special Equipment Research Base, Tianjin 300300, China;
    3. Basic Experiment Center, Civil Aviation University of China, Tianjin 300300, China
  • Received:2017-12-22 Revised:2018-01-28 Online:2018-09-15 Published:2018-05-28
  • Supported by:
    National Natural Science Foundation of China, Civil Aviation Administration of China (U1533103); the Fundamental Research Funds for the Central Universities (3122017049)

Abstract: Three flexible flapping mechanism configurations are herein proposed for the model of "Sparrow" Flapping Wing Micro Air Vehicle (FWMAV). Analytical research and simulation tests on the original model and the three proposed configurations unveil that an FWMAV with a flexible flapping mechanism can greatly reduce the peak torque of motor input, and then improve energy efficiency. In addition, when running rapidly without the flexible system, the motor of a FWMAV is found easy to get shocked by uneven loads due to a smaller impact force at the stage of down flapping and a bigger one at the stage of up flapping. When an elastic component is introduced into the vehicle, the impact force effected on the motor and the flapping mechanism reduces effectively. The service life of the vehicle can be consequently prolonged. It is also shown that the proposed flexible flapping mechanisms have lower noises, meaning that the survival rate of the vehicles in the battlefield environment will be raised up. This study lays a foundation for applications of the FWMAV model.

Key words: flapping wing micro air vehicle, flexible system, peak torque, energy efficiency, noise reduction

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