Multi-winged biomimetic flapping-wing aircraft with counter-twist steering function

By using independently driven forward and reverse rotating motors, the problems of flapping frequency coupling and steering efficiency in biomimetic flapping-wing aircraft have been solved, improving aerodynamic efficiency and maneuverability, and achieving more flexible flight control.

CN224511454UActive Publication Date: 2026-07-17CHONGQING UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING UNIV OF TECH
Filing Date
2025-07-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing biomimetic flapping-wing aircraft suffer from problems such as flapping frequency coupling, low aerodynamic efficiency, insufficient maneuverability, and large turning radius, making it difficult to perform missions efficiently in complex environments.

Method used

It employs independently driven forward and reverse rotating motors, and achieves decoupled control of the wings by controlling the speed difference. Combined with the reverse rotation function, it reduces lift loss during turning and improves maneuverability and flexibility.

Benefits of technology

It enables independent flapping of the wings, improving aerodynamic efficiency and endurance, shortening the turning radius, and enhancing the stability and maneuverability of the aircraft.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of multi-wing bionic flapping-wing aircraft with anti-torsion steering function, including fuselage, at least two groups of wing are installed on fuselage with interval, the position of each group of wing on fuselage is equipped with driving device, driving device includes with fuselage fixed connection in driving motor, motor shaft of driving motor is driven connection with its corresponding wing through transmission device, there is one or at least continuous two driving motor as positive rotation motor from front to back along fuselage longitudinal axis direction, the rest is counter-rotating motor, the rotation direction of motor shaft of positive rotation motor and counter-rotating motor is reversely arranged, motor shaft axis direction of driving motor is parallel to fuselage longitudinal axis direction and with fuselage longitudinal axis in same vertical plane, the motor shaft of all driving motor is located on same axis, power supply device for powering each driving motor is also installed on fuselage, wherein, by controlling the speed difference between positive rotation motor and counter-rotating motor, steering is realized.
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Claims

1. A multi-winged biomimetic flapping-wing aircraft with anti-torsion function, characterized in that: The fuselage includes at least two sets of wings spaced apart along its longitudinal axis. A drive unit is installed on the fuselage corresponding to each set of wings to drive their movement. The drive unit includes a drive motor fixedly connected to the fuselage. The motor shaft of the drive motor is connected to its corresponding wing via a transmission device. Along the longitudinal axis of the fuselage, from front to back, one or at least two consecutive drive motors are forward-rotating motors, and the rest are reverse-rotating motors. The rotation directions of the motor shafts of the forward-rotating and reverse-rotating motors are opposite. The axis of the drive motor shafts is parallel to the longitudinal axis of the fuselage and lies in the same vertical plane as the longitudinal axis. All drive motor shafts are located on the same axis. A power supply device is also installed on the fuselage to supply power to each drive motor. The direction of rotation is achieved by controlling the speed difference between the forward-rotating and reverse-rotating motors.

2. The multi-winged biomimetic flapping-wing aircraft with anti-torque function according to claim 1, characterized in that: The number of wings is even, and the number of the forward-rotating motors is the same as the number of the reverse-rotating motors.

3. The multi-winged biomimetic flapping-wing aircraft with anti-torque function according to claim 2, characterized in that: The wing includes a mounting shaft disposed on the fuselage and extending in a direction parallel to the longitudinal axis of the fuselage, and a left wing support and a right wing support arranged in the axial direction of the mounting shaft and rotatably connected to the mounting shaft. The left and right wing supports both extend radially along the mounting shaft. The projections of the left and right wing supports along the longitudinal axis of the fuselage are symmetrically arranged in the left-right direction. A wing membrane is connected to the rear side of the left and right wing supports respectively. The driving device can synchronously drive the left and right wing supports to periodically reciprocate around the mounting shaft. The mounting shafts in all wings are coaxially arranged. The order of the left and right wing supports driven by the forward-rotating motor in the front-rear direction is reversed compared to the order of the left and right wing supports driven by the reverse-rotating motor in the front-rear direction.

4. The multi-winged biomimetic flapping-wing aircraft with anti-torque function according to claim 3, characterized in that: The transmission device includes a frame fixedly connected to the body, and transmission gears corresponding to the left wing support and the right wing support are rotatably connected to the frame. The two transmission gears mesh with each other. The left wing support and the right wing support are connected to their corresponding transmission gears by rocker arms to form a crank-rocker structure. The drive motor is fixed to the corresponding frame, and a drive gear is mounted on the motor shaft of the drive motor. An intermediate gear is rotatably connected to the frame and meshes with the drive gear and one of the transmission gears.

5. The multi-winged biomimetic flapping-wing aircraft with anti-torque function according to claim 3, characterized in that: The wing membrane is made of a flexible material.

6. The multi-winged bionic flapping-wing aircraft with anti-torsion function according to claim 1, characterized in that: The wings have an upward dihedral angle.

7. The multi-winged biomimetic flapping-wing aircraft with anti-torque function of claim 1, wherein: The device is also equipped with a barometric pressure sensing system, an inertial measurement system, a GPS positioning system, and a communication system. The barometric pressure sensing system, the inertial measurement system, and the GPS positioning system can each send data out through the communication system.