Bird-Inspired Spatial Flapping Wing Mechanism via Coupled Linkages with Single Actuator
Overview
This paper presents a bird-inspired flapping-wing mechanism built from two coupled spatial four-bars driven by a single motor. One linkage is actuated to generate the desired spatial sweeping stroke, while the serially coupled linkage remains unactuated and passively switches between extended and folded wing configurations over the stroke cycle. The authors introduce a simplified kinematic methodology for constructing Bennett linkages from quadrilaterals that contain a desired surface area and further leverage mechanically induced passive state switching. A 3D-printed prototype is assembled and tested, demonstrating the intended spatial stroke and passive folding behavior.
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- arXiv Robotics — research abstractsSignalBird-Inspired Spatial Flapping Wing Mechanism via Coupled Linkages with Single Actuator
This paper presents a bird-inspired flapping-wing mechanism built from two coupled spatial four-bars driven by a single motor. One linkage is actuated to generate the desired spatial sweeping stroke, while the serially coupled linkage remains unactuated and passively switches between extended and folded wing configurations over the stroke cycle. The authors introduce a simplified kinematic methodology for constructing Bennett linkages from quadrilaterals that contain a desired surface area and further leverage mechanically induced passive state switching. A 3D-printed prototype is assembled and tested, demonstrating the intended spatial stroke and passive folding behavior.
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