Eight-degree-of-freedom flapping-wing robot having aerodynamic configuration

By using a modular design and an eight-DOF flapping-wing robot driven by an independent motor, the problem of wing motion coupling was solved, enabling multi-dimensional and precise flight attitude control, and improving load-bearing capacity and flight stability.

WO2026124699A1PCT designated stage Publication Date: 2026-06-18SHENZHEN EAGLESIGHT DYNAMICS TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
SHENZHEN EAGLESIGHT DYNAMICS TECHNOLOGY CO LTD
Filing Date
2026-03-30
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Existing multi-degree-of-freedom flapping-wing robots generally adopt a single motor + complex transmission linkage configuration, which leads to severe coupling of wing movements, making it difficult to achieve independent and precise control of each degree of freedom. This affects flight attitude adjustment and load-bearing capacity. Furthermore, the transmission chain introduces additional weight, elastic deformation, and energy loss, resulting in insufficient structural rigidity and low power transmission efficiency.

⚗Method used

The aircraft adopts a modular design, with the wing divided into a single wing section and a two-section wing section. Each wing section is driven by an independent motor. The frame is a mortise and tenon structure, combined with the aerodynamic shape formed by carbon tubes. Independent control is achieved through a synchronous transmission mechanism, decoupling the wing movement and enhancing structural strength and power transmission efficiency.

🎯Benefits of technology

It achieves non-integral synchronous flapping of the wings, mimicking the multi-degree-of-freedom flapping motion of birds, improving the ability to finely control flight attitude in multiple dimensions, increasing load capacity and flight energy utilization efficiency, and enhancing anti-disturbance capability and flight stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

An eight-degree-of-freedom flapping-wing robot having an aerodynamic configuration, said flapping-wing robot comprising wings, a fuselage (4) and an empennage (3). A frame body (20) of the fuselage (4) has a battery (8) and a controller (9) provided therein, angle-of-attack electric motors (7) are provided at side portions of the frame body (20), and a tail electric motor (10) is provided at a tail portion of the frame body (20). The empennage (3) is provided with a pitch electric motor (11), and the pitch electric motor (11) is connected to a connector (19) that rotates synchronously with the tail electric motor (10). Each wing comprises a first wing section (1) and a second wing section (2), wherein a connector (19) that rotates synchronously with the angle-of-attack electric motor (7) on the same side is provided at an end of the first wing section (1); a first rotating shaft (16) is provided at the middle of the connector (19); a first driving electric motor (6) and a second driving electric motor (21) are respectively provided on two sides of the connector (19); the first driving electric motor (6) is connected to the first rotating shaft (16); and the second driving electric motor (21) is connected to a second rotating shaft (18) of the second wing section (2) by means of a synchronous transmission mechanism.
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