Driving device for model insect wing based on PIV

Abstract

The invention discloses a driving device for model insect wings based on PIV. The driving device comprises model wings, a model wing driving mechanism, an oil tank, an oil medium, tracing particles and a PIV imaging device. The model wing is mounted on the model wing driving mechanism, and the frame is erected above the oil tank. One part of the model fin driving mechanism and the model fins are immersed into the oil medium. A motor and a steering engine of the driving mechanism enable the model wing to simulate a flapping wing track of a real insect in a horizontal and vertical rotation and translation coupling manner. Flapping is carried out according to a set speed, counter-acting force of the oil medium on the model wings drives the model wings to advance forwards, a PIV imaging device is adopted to irradiate a section area of a measured flow field, and tracer particle images exposed twice or for many times in the flapping wing action process are shot through an imaging recording system. On the basis of the principle that Reynolds numbers are equal, the size and the beating speed of model wings and a proper oil medium are designed, the dynamics principle of the actual flight process of insects can be conveniently researched, and observation is easy.

Description

technical field [0001] The invention belongs to the bionic technical field of aeronautical engineering, and in particular relates to a driving device for a model insect wing based on PIV. Background technique [0002] Ornithopter refers to an aircraft that, like a bird or an insect, uses the counterforce of flapping the air through the active movement of the wings as lift and thrust, and maneuvers through the position changes of the wings and tail. It is designed and manufactured based on the principle of bionics. Compared with fixed wings and rotors, the main feature of the flapping wing is that it integrates the lifting, hovering and propulsion functions into one flapping wing system, which can fly long distances with very little energy, and at the same time , with strong mobility. At present, the development of flapping-wing aircraft is gradually developing towards simulating birds or simulating insects. Among them, the miniature flapping-wing aircraft that simulates ins...

AI Technical Summary

Problems solved by technology

[0003] The bionic flapping-wing aircraft studied at present mainly imitates flapping-wing insects in terms of structure and flapping mode, but its propulsion efficiency is far lower than that of actual flapping-winged insects. effect, the current research is not deep enough

However, because insect wings are small and move in the air, it is difficult to observe the air flow around the wings during movement, and then obtain the high lift mechanism of insects during flight

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