Bionic flapping-wing robot driven by flexible piezoelectric fibers

Abstract

The invention provides a bionic flapping-wing robot driven by flexible piezoelectric fibers. The flapping-wing robot has a large flapping range and can be twisted, and the flapping-wing robot has large flying power and good balance. The bionic flapping wing robot driven by flexible piezoelectric fibers includes a fuselage, a drive-amplification mechanism and wings, the wings are installed in pairs on the fuselage, there is at least one pair of wings on the fuselage, and each wing includes a rib And fins, each drive-amplification mechanism corresponds to a wing, the drive-amplification mechanism is located in the fuselage, the drive-amplification mechanism includes a three-stage series lever, the input of the first-stage lever and the second-stage lever of the drive-amplification mechanism Each end is provided with its own piezoelectric actuator, the output end of the first-stage lever is hinged to the second-stage lever, and the hinge point is used as the fulcrum of the second-stage lever, and the fin rib is used as the third-stage lever.

Description

technical field [0001] The invention relates to a flapping-wing robot driven by flexible piezoelectric fibers. Background technique [0002] Due to the characteristics of small size, light weight, and low cost, flapping-wing flying micro-robots have very important and extensive applications in national defense and civilian fields, and can complete many tasks that other robots cannot perform, such as low-altitude reconnaissance, urban combat, and electronic interference. , communication relay, nuclear / biological and chemical detection, precision delivery and other national defense fields, as well as civilian fields such as survey and communication of field operators, monitoring and support of natural disasters, environmental and pollution monitoring, etc. [0003] The aerodynamic efficiency of the flapping wing is low due to the inability of the conventional flapping wing mechanism to achieve high-frequency flapping, which largely restricts the development of the flapping win...

AI Technical Summary

Problems solved by technology

The piezoelectric drive power is small, the output force is large, but the displacement is very small. Therefore, in the prior art, the flapping wings of the bionic flapping-wing robot driven by the piezoelectric stack are small, which largely results in insufficient flying power of the flapping-wing robot.

In addition, the flapping wings of the existing bionic flapping-wing robots cannot be twisted, and they fly with a single pair of wings, which is also the reason why the existing bionic flapping-wing robots have insufficient flight power and short flight time

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