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Journal of Bionic Engineering

, Volume 14, Issue 4, pp 726–737 | Cite as

Automated Kinematics Measurement and Aerodynamics of a Bioinspired Flapping Rotary Wing

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Abstract

A physical model for a micro air vehicle with Flapping Rotary Wings (FRW) is investigated by measuring the wing kinematics in trim conditions and computing the corresponding aerodynamic force using computational fluid dynamics. In order to capture the motion image and reconstruct the positions and orientations of the wing, the photogrammetric method is adopted and a method for automated recognition of the marked points is developed. The characteristics of the realistic wing kinematics are presented. The results show that the non-dimensional rotating speed is a linear function of non-dimensional flapping frequency regardless of the initial angles of attack. Moreover, the effects of wing kinematics on aerodynamic force production and the underlying mechanism are analyzed. The results show that the wing passive pitching caused by elastic deformation can significantly enhance lift production. The Strouhal number of the FRW is much higher than that of general flapping wings, indicating the stronger unsteadiness of flows in FRW.

Keywords

bioinspired flapping rotary wing aerodynamics wing kinematics measurement computational fluid dynamics micro air vehicle 

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Copyright information

© Jilin University 2017

Authors and Affiliations

  1. 1.School of Transportation Science and EngineeringBeihang UniversityBeijingChina

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