Mr. Caspar T. Bolsman Profile

Caspar T. Bolsman

at Technische Univ Delft

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Proceedings Article | 18 April 2008 Paper

Insect-inspired wing actuation structures based on ring-type resonators

Caspar Bolsman, Johannes F. Goosen, Fred van Keulen

Proceedings Volume 6928, 69281I (2008) https://doi.org/10.1117/12.776084

KEYWORDS: Micro unmanned aerial vehicles, Actuators, Aerodynamics, Resonators, Numerical modeling, Model-based design, Prototyping, Electromagnetism, Photography, Mechanical engineering

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In this paper, we illustrate and study the opportunities of resonant ring type structures as wing actuation mechanisms for a flapping wing Micro Air Vehicle (MAV). Various design alternatives are presented and studied based on computational and physical models. Insects provide an excellent source of inspiration for the development of the wing actuation mechanisms for flapping wing MAVs. The insect thorax is a structure which in essence provides a mechanism to couple the wing muscles to the wings while offering weight reduction through application of resonance, using tailored elasticity. The resonant properties of the thorax are a very effective way to reducing the power expenditure of wing movement. The wing movement itself is fairly complex and is guided by a set of control muscles and thoracic structures which are present in proximity of the wing root. The development of flapping wing MAVs requires a move away from classical structures and actuators. The use of gears and rotational electric motors is hard to justify at the small scale. Resonant structures provide a large design freedom whilst also providing various options for actuation. The move away from deterministic mechanisms offers possibilities for mass reduction.

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