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Implementation of initial passive stability in insect-mimicking flapping-wing micro air vehicle

Hoang Vu Phan (Artificial Muscle Research Center, Konkuk University, Seoul, South Korea and National Research Laboratory for Biomimetics and Intelligent Microsystems, Konkuk University, Seoul, South Korea and Department of Advanced Technology Fusion, Konkuk University, Seoul, South Korea.)
Quang-Tri Truong (Laboratory of Applied Mechanics, Ho Chi Minh City University of Technology, Ho Chi Minh, Vietnam.)
Hoon-Cheol Park (Artificial Muscle Research Center, Konkuk University, Seoul, South Korea and National Research Laboratory for Biomimetics and Intelligent Microsystems, Konkuk University, Seoul, South Korea and Department of Advanced Technology Fusion, Konkuk University, Seoul, South Korea.)

International Journal of Intelligent Unmanned Systems

ISSN: 2049-6427

Article publication date: 9 February 2015

Abstract

Purpose

The purpose of this paper is to demonstrate the uncontrolled vertical takeoff of an insect-mimicking flapping-wing micro air vehicle (FW-MAV) of 12.5 cm wing span with a body weight of 7.36 g after installing batteries and power control.

Design/methodology/approach

The forces were measured using a load cell and estimated by the unsteady blade element theory (UBET), which is based on full three-dimensional wing kinematics. In addition, the mean aerodynamic force center (AC) was determined based on the UBET calculations using the measured wing kinematics.

Findings

The wing flapping frequency can reach to 43 Hz at the flapping angle of 150°. By flapping wings at a frequency of 34 Hz, the FW-MAV can produce enough thrust to over its own weight. For this condition, the difference between the estimated and average measured vertical forces was about 7.3 percent with respect to the estimated force. All parts for the FW-MAV were integrated such that the distance between the mean AC and the center of gravity is close to zero. In this manner, pitching moment generation was prevented to facilitate stable vertical takeoff. An uncontrolled takeoff test successfully demonstrated that the FW-MAV possesses initial pitching stability for takeoff.

Originality/value

This work has successfully demonstrated an insect-mimicking flapping-wing MAV that can stably takeoff with initial stability.

Keywords

Acknowledgements

This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (grant number: 2013R1A2A2A01067315).

Citation

Phan, H.V., Truong, Q.-T. and Park, H.-C. (2015), "Implementation of initial passive stability in insect-mimicking flapping-wing micro air vehicle", International Journal of Intelligent Unmanned Systems, Vol. 3 No. 1, pp. 18-38. https://doi.org/10.1108/IJIUS-12-2014-0010

Publisher

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Emerald Group Publishing Limited

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