TY - JOUR
T1 - Study on flexible flapping wings with three dimensional asymmetric passive deformation in a flapping cycle
AU - Nian, Peng
AU - Song, Bifeng
AU - Xuan, Jianlin
AU - Zhou, Wenhui
AU - Xue, Dong
N1 - Publisher Copyright:
© 2020 Elsevier Masson SAS
PY - 2020/9
Y1 - 2020/9
N2 - In order to further improve the efficiency of flapping wings, inspired by bird flight, a new compliant joint structure is proposed, which is easy to manufacture. The joint has the capacity of passive bending, twisting and sweeping under the aerodynamic effect of the flapping wing. A multi-objective optimization program for the compliant joint is developed, which is combined with the measured joint load. The optimized compliant joint has the effect of asymmetric passive deformation in a flapping cycle. The model wings with compliant joints are studied in the windless flapping experiment, wind tunnel experiment and free flight test. The experimental results show that the model wings have a significant advantage of power consumption compared with the original wings, and also have an advantage in the aerodynamic performance at low flight velocity and low angle of attack.
AB - In order to further improve the efficiency of flapping wings, inspired by bird flight, a new compliant joint structure is proposed, which is easy to manufacture. The joint has the capacity of passive bending, twisting and sweeping under the aerodynamic effect of the flapping wing. A multi-objective optimization program for the compliant joint is developed, which is combined with the measured joint load. The optimized compliant joint has the effect of asymmetric passive deformation in a flapping cycle. The model wings with compliant joints are studied in the windless flapping experiment, wind tunnel experiment and free flight test. The experimental results show that the model wings have a significant advantage of power consumption compared with the original wings, and also have an advantage in the aerodynamic performance at low flight velocity and low angle of attack.
KW - Compliant joint
KW - Flapping wing air vehicle
KW - Flight performance
KW - Wind tunnel experiment
UR - http://www.scopus.com/inward/record.url?scp=85086385906&partnerID=8YFLogxK
U2 - 10.1016/j.ast.2020.105944
DO - 10.1016/j.ast.2020.105944
M3 - 文章
AN - SCOPUS:85086385906
SN - 1270-9638
VL - 104
JO - Aerospace Science and Technology
JF - Aerospace Science and Technology
M1 - 105944
ER -