一种无人机系统错频减振支架结构
By designing a composite material inertial navigation equipment bracket and a metal suspension arm structure with frequency offset and vibration reduction, the problem of resonance instability of the UAV system support was solved, achieving improvements in lightweighting, stability, and maintainability, and ensuring real-time and accurate feedback of UAV flight data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AVIC XAC COMMERCIAL AIRCRAFT CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-17
Smart Images
Figure CN224511502U_ABST
Abstract
Claims
1. A drone system mistuned vibration absorber bracket structure, characterized by, Symmetrical arrangement along the flight path near the UAV's center of gravity, including: Suspension arms, the two suspension arms are arranged in parallel; Each of the suspension arms is connected to the wing box beam via the connecting angle member; An inertial navigation equipment bracket, which is vertically connected between the two suspension arms, is made of composite material.
2. The drone system mistuned vibration absorber bracket structure of claim 1, wherein, Also includes: An auxiliary angle member for the inertial navigation equipment is vertically connected between the two suspension arms.
3. The drone system mistuned vibration absorber bracket structure of claim 2, wherein, The inertial navigation equipment bracket is an "Ω" composite laminate structure, which uses a mixture of glass fiber and carbon fiber. The outer surface glass fiber and the inner carbon fiber are interwoven, and the male mold is laid on the female mold to form the shape.
4. The drone system mistuned vibration absorber bracket structure of claim 3, wherein, The suspension arm, connecting angle brackets, and inertial navigation equipment auxiliary angle brackets are all made of metal.
5. The drone system mistuned vibration absorber bracket structure of claim 4, wherein, The connecting angle and the inertial navigation equipment auxiliary angle are designed in a "T" shape. The connecting angle is connected to the wing box beam by a high-strength lock. The strength of the connecting angle is less than that of the wing box beam. The connecting angle is connected to the suspension arm by a support plate nut.
6. The drone system mistuned vibration absorber bracket structure of claim 5, wherein, The suspension arm is designed in a triangular shape and machined. Based on strength analysis, force transmission ribs are designed and light-reducing holes are opened. The flange is turned inward to connect to the inertial navigation equipment bracket, forming a truss structure.
7. The frequency-reduction vibration damping support structure for an unmanned aerial vehicle system according to claim 6, characterized in that, A grounding wire connection interface is provided on the suspension arm.
8. The drone system mistuned vibration absorber bracket structure of claim 7, wherein, The inertial navigation equipment bracket and the suspension arm are connected by a plate nut, and the minimum clearance between the plate nut and the cargo hold is not less than 8mm.