Dragonfly Inspired Nanocomposite Flapping Wing for Micro Air Vehicles
- 5 Downloads
The current research is aimed towards the development of dragonfly inspired nanocomposite flapping wing for micro air vehicles (MAVs). The wing is designed by taking inspiration from the hind wing of dragonfly (Anax Parthenope Julius). Carbon nanotubes (CNTs)/polypropylene nanocomposite and low-density polyethylene are used as the wing materials. The nanocomposites are developed with varying CNTs’ weight percentage (0% – 1%) and characterized for dynamic mechanical properties, which revealed that the 0.1 weight percentage case produces highest storage modulus values throughout the frequency range (1 Hz – 90 Hz). It is also observed that the storage modulus values are in the range of Young’s modulus of veins and membrane of natural insect wings. This is useful to achieve true biomimicking. Advanced manufacturing technique such as photolithography is used for wing fabrication. The length, weight and average thickness of the fabricated wing are ~44 mm, 26.22 mg and 187 μm, respectively. The structural dynamic properties of the fabricated wing are obtained experimentally and computationally using DIC and ANSYS, respectively. The developed dragonfly inspired wing showed a natural frequency of 29.4 Hz with a bending mode shape which is close to the characteristic frequency of its natural counterpart.
Keywordsflapping wings biomimicking nanocomposites MAVs
Unable to display preview. Download preview PDF.
The authors thank 4i Lab from Department of Mechanical Engineering, IIT Kanpur and Lithography Lab from Department of Material Science and Engineering, IIT Kanpur for their help in the manufacturing of wing mold. Authors also thank ANSYS for providing the student version to carry out the computational finite element modal analysis study.
- Combes S A, Daniel T L. Flexural stiffness in insect wings I. Scaling and the influence of wing venation. Journal of Experimental Biology, 2003, 206, 2979–2987.Google Scholar
- Bos F M. Numerical Simulations of Flapping Foil and Wing Aerodynamics: Mesh Deformation Using Radial Basis Functions. Delft University of Technology, Delft, Netherlands, 2010.Google Scholar
- Brown D. Deception Point. Random House, New York, USA, 2013.Google Scholar
- Brodsky A K. The Evolution of Insect Flight, Oxford University Press, Oxford, UK, 1994.Google Scholar
- Wood R J. Design, fabrication, and analysis of a 3DOF, 3cm flapping-wing MAV. IEEE/RSJ International Conference on Intelligent Robots and Systems, San Diego, USA, 2007, 1576–1581.Google Scholar
- Pornsin-sirirak T N, Lee S W, Nassef H, Grasmeyer J, Tai Y C, Ho C M, Keennon M. MEMS wing technology for a battery-powered ornithopter. IEEE The Thirteenth Annual International Conference on Micro Electro Mechanical Systems, Miyazaki, Japan, 2000, 799–804.Google Scholar
- Kumar D, Goyal T, Kumar V S, Mohite P M, Kamle S, Verma V. Development and modal analysis of bioinspired CNT/epoxy nanocomposite MAV flapping wings. Journal of Aerospace Sciences and Technologies, 2015, 67, 88–93.Google Scholar
- Greenewalt C H. The wings of insects and birds as mechanical oscillators. Proceedings of the American Philosophical Society, 1960, 104, 605–611.Google Scholar
- Jafferis N T, Graule M A, Wood R J. Non-linear resonance modeling and system design improvements for underactuated flapping-wing vehicles. IEEE International Conference on Robotics and Automation, Stockholm, Sweden, 2016, 3234–3241.Google Scholar
- Smith C W, Herbert R, Wootton R J, Evans K E. The hind wing of the desert locust (Schistocerca gregaria Forskal). II. Mechanical properties and functioning of the membrane. Journal of Experimental Biology, 2000, 203, 2933–2943.Google Scholar
- Kumar V S, Kumar D, Goyal T, Mohite P M, Kamle S. Development and application of PP-CNT composite for hummingbird inspired MAV flapping wings. International Micro Air Vehicle Conference and Competition, Delft, The Netherlands, 2014, 180–187.Google Scholar
- ASTM. D1708: Standard Test Method for Tensile Properties of Plastics by Use of Microtensile Specimens. ASTM International, New York, USA, 2013.Google Scholar
- ASTM. D882: Standard Test Method for Tensile Properties of Thin Plastic Sheeting. ASTM International, New York, USA, 2012.Google Scholar
- Azuma A, Watanabe T. Flight performance of a dragonfly. Journal of Experimental Biology, 1988, 137, 221–252.Google Scholar