"Clicking" compliant mechanism for flapping-wing micro aerial vehicle
This paper presented a click mechanism, which is inspired by a Dipteran insect, for use in flapping-wing micro aerial vehicle. The clicking mechanism is integrated in a thorax-like compliant mechanism, which buckles and consequently produces a large wing stroke when driven by an electric motor. The thorax-like compliant mechanism can store elastic energy in flexible hinges and is good for storing kinetic energy expended during wing reversal. This work showed that clicking compliant mechanism produces more thrust per input power than a conventional non-clicking rigid-body mechanism. The clicking prototype weighs 3.58g, has 115° wing stroke, and is able to achieve hovering at 15.8Hz flapping frequency. The non-clicking prototype is lighter at 3.35g with a wingstroke of 100°, but could not achieve hover but could not achieve hovering even though driven by the same motor at a faster flapping frequency (16.2Hz) under the same driving voltage (4.9 V). The clicking prototype produces a thrust-to-power ratio of 2.17g/W, higher than 1.15g/W of the nonclicking counterpart.
Today, Flapping Micro Aerial Vehicles (MAV) are used in many different applications. Reynolds Number for this kind of aerial vehicle is about 104 ~ 105 which shows dominancy of inertial effects in comparison of viscous effects in flow field except adjacent of the solid boundaries. Due to periodic flapping stroke, fluid flow is unsteady. In addition, these creatures have some complexities in kin...متن کامل
The purpose of this research is to model and control a dragonflylike flapping wing micro aerial vehicle (FWMAV). It is well known that micro aerial vehicle (MAV) designs can be classified as fixed wing, rotary wing and flapping wing. Fixed wing MAV is capable of fast forward flight, which is suitable for flying outdoor. Rotary wing MAV is suitable for movement at low speed. Recently, flapping w...متن کامل
Flexible flapping wings have garnered a large amount of attention within the micro aerial vehicle community: a critical component of computationalmicro aerial vehicle simulations is the representation of the structural dynamics behavior of the flapping-wing structure. This paper discusses the development of a new nonlinear finite element solver that is based on a corotational approach and suita...متن کامل
Unmanned Aerial Vehicles (UAVs) are proliferating in both the civil and military markets. Flapping wing UAVs, or ornithopters, have the potential to combine the agility and maneuverability of rotary wing aircraft with excellent performance in low Reynolds number flight regimes. The purpose of this paper is to present new free flight experimental results for an ornithopter equipped with one degr...متن کامل
How to efficiently mimic the wing shape and kinematics pattern of an able hovering living flier is always a concern of researchers from the flapping wing micro aerial vehicles community. In this work, the separate or combined optimizations of wing geometry or/and wing kinematic parameters are systematically performed to minimize the energy of hovering flight, firstly on the basis of analyticall...متن کامل