Flapping-wing Mechanism and the Measurement of Lift Force

摘要

Flapping-wing mechanism is an aerial vehicle with new concept. The research background of bionic flapping-wing mechanism is introduced; the characteristics and the application prospect are analyzed. The flight mechanism that gain lift under lower Reynolds number by three flying ways including fixed-wing, rotary-wing and flapping-wing are analyzed. It is concluded that bionic flapping-wing flying has better lift fore generation efficiency, which is the development trend of aerial vehicles. By the scaling effect analysis on bionic flying mechanism, it is presented that bionic flying could be realized more easily when the sizes are decreased. In this article, the flying mechanism of inset and Aves was studied and the high lift force mechanism of flapping-winging was concluded. In order to make the flapping-flying easier, we design a new type flapping-flying mechanism. A set of flapping-wing move comparatively. It can provide lift force all the time. We test the lift force in the condition of different speed and different frequency. The lift effect is validated on a simple suspend flight device. An experimental platform to measure the aerodynamic force is devised and developed by ourselves. On this equipment, the aerodynamics force of the prototype is test, and the test results are compared to the result of theory calculation. The references are provided for future design and fly-test control ways. The result is that enhancing speed or frequency can improve lift force in evidence.