Abstract
Gaps between feathers can be observed when some birds are flying. They can control the opening and closing of gaps to achieve the goal of good aerodynamic performance. The effects of the wing gaps on aerodynamic performance is investigated by experimental study. Firstly, a kind of flapping wing with one-way holes is designed and tested. The holes are connected by hinge, which is open during the up-stroke process and close during the down-stroke process. One-way holes can increase the lift significantly. However, the hinge connection makes the movement process less continuous. And there’s more resistance because the windward area is increased by hinged holes. Further on, the method was improved by using one-way deforming characteristics of bird feathers. The goose feathers are used as a covering skin of flapping wing, which can have continuous opening and closing gaps, making the flapping process more smoothly and getting smooth aerodynamic characteristics. The results show that the one-way holes/gaps flapping wing can effectively increase the lift and reduce the power consumption. The using of natural feathers as flapping wing covering skin is a conducive way to improve the aerodynamic performance.
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References
Pennycuick CJ (2008) Modelling the flying bird. Academic Press, London
Shyy W, Berg M, Ljungqvist D (1999) Flapping and flexible wings for biological and micro air vehicles. Prog Aerosp Sci 35:455–505
Tanaka H, Okada H, Shimasue Y, Liu H (2015) Flexible flapping wings with self-organized microwrinkles. Bioinspiration Biomimetics 10(4). https://doi.org/10.1088/1748-3190/10/4/046005
Heathcote S, Wang Z, Gursul I (2008) Effect of spanwise flexibility on flapping wing propulsion. J Fluids Struct 24:183–199
Park HC, Lee SY, Sang ML et al (2004) Design and demonstration of flapping wing device powered by LIPCA. Smart Struct Mater 5390:212–216
Acknowledgments
This work was supported in part by the National Key Research and Development Program of China under Grant 2017YFB1300102, and was supported by the National Natural Science Foundation of China under grant U1613227.
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Yang, W., Song, B., Gao, G., Zhang, K. (2019). Experimental Study on Aerodynamic Performance of Flapping Wing with One-Way Holes/Gaps. In: Zhang, X. (eds) The Proceedings of the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018). APISAT 2018. Lecture Notes in Electrical Engineering, vol 459. Springer, Singapore. https://doi.org/10.1007/978-981-13-3305-7_92
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DOI: https://doi.org/10.1007/978-981-13-3305-7_92
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