Flapping wing energy harvesting device with self-moving flaps

Abstract

The invention relates to a flapping wing energy harvesting device for a self-moving flap, which includes an energy collection component, a flapping wing, and a main shaft. In the middle of the energy harvesting part, the two flapping wings can rotate around the main shaft, and the whole can heave in the vertical direction. The energy harvesting part obtains the energy transmitted by the flapping wings through the movement of the main shaft. In the present invention, the Gurney flap is applied to the energy-capturing device of the flapping wing. According to the principle of buoyancy, the Gurney flap is designed on the airfoil trailing edge of the flapping wing to automatically switch the direction according to the direction of the heave movement, etc. The effect is to increase the camber of the airfoil, thereby increasing the lift coefficient of the airfoil and improving the energy-gaining efficiency of the flapping wing. The device has a simple structure and uses the principle of buoyancy to automatically switch the direction of the flaps on the surface of the airfoil along with the heave movement.

Description

technical field [0001] The invention relates to a flapping wing energy harvesting device, in particular to a flapping wing energy harvesting device using a Gurney flap. Background technique [0002] In science and engineering, humans often draw design inspiration from the natural world. Human beings have successfully designed some miniature bionic aircrafts by imitating the flapping propulsion movement mode of birds, fish and aquatic animals. Inspired by birds flying in groups, fish swimming in groups and countercurrent movement, humans have discovered that flapping wings can not only be used for propulsion and improve maneuverability, but also can obtain energy from vortices, free surface waves or free incoming currents. [0003] The flapping wing is a mechanism for simulating the propulsion or energy capture of birds, fish and aquatic animals. Such as figure 1 As shown, the existing flapping wing energy-capturing device using flexible airfoil, the force analysis of the ...

AI Technical Summary

Problems solved by technology

[0005] Disadvantages of the existing technology: the existing flapping wing energy harvesting devices basically use different naca series symmetrical rigid airfoils, optimize the motion parameters of the flapping wing, and local deformation of the airfoil to improve the energy harvesting efficiency of the flapping wing device

Complex structure and high manufacturing cost

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