Floating Gimbal Sleeve Mount for High-Frequency Vibration Damping
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Solution Overview
Problem
Conventional electronic gimbals in aerial vehicles are unable to react quickly enough to compensate for high-frequency vibrations, resulting in shaky and unstable videos, and introduce unwanted noise into the audio channel.
Innovation Solution
A vibration damping mechanism is introduced, comprising a gimbal sleeve that floats between the floor and ceiling surfaces of an aerial vehicle, connected via upper and lower dampers with springs, allowing freedom of motion in yaw, pitch, and roll directions, and a ball joint for additional stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional electronic gimbal is used to stabilize the camera, then mechanical stabilization is provided, but the gimbal cannot react quickly enough to compensate for high frequency vibrations
Solution Approach 1:
The system is divided into two independent stabilization subsystems: a conventional electronic gimbal for low-frequency mechanical stabilization and a new vibration damping mechanism with floating mount for high-frequency vibration isolation. Each subsystem operates in its optimal frequency range, collectively providing broad-spectrum stabilization without requiring the gimbal to respond to all vibration frequencies.
Solution Approach 2:
A floating mount mechanism with vibration damping elements is introduced as an intermediary between the aerial vehicle platform and the gimbal-camera assembly. This intermediate layer absorbs and dampens high-frequency vibrations before they reach the gimbal, allowing the gimbal to focus on compensating for lower-frequency positional changes without being overwhelmed by high-frequency oscillations.
2Stability of the object's composition
If the gimbal is rigidly mounted to the aerial vehicle, then structural stability is maintained, but high frequency vibrations are transmitted to the camera
Solution Approach 1:
Vibration damping elements are pre-installed in the floating mount mechanism to cushion against high-frequency vibrations before they can be transmitted to the camera and gimbal assembly. This proactive damping approach protects the sensitive imaging equipment from vibration-induced instability while maintaining overall structural integrity.
Solution Approach 2:
The floating mount incorporates flexible vibration damping elements that allow controlled movement and isolation in response to high-frequency vibrations while maintaining the structural connection between the aerial vehicle and the camera-gimbal system. These flexible elements selectively filter vibrations based on frequency, blocking harmful high-frequency oscillations while permitting necessary mechanical coupling.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mechanism effectively dampens vibrations, improving video stability and reducing noise in captured audio by quickly compensating for high-frequency vibrations.
Implementation Method 1
A vibration damping mechanism is introduced, comprising a gimbal sleeve that floats between the floor and ceiling surfaces of an aerial vehicle, connected via upper and lower dampers with springs
Implementation Method 2
connected via upper and lower dampers with springs
Data Source
AI summary
An aerial vehicle with a chassis; one or more dampers coupled to chassis; and a gimbal sleeve configured to couple to a gimbal of the aerial vehicle, the gimbal sleeve at least partially extending into the chassis, the gimbal sleeve comprising: a tube structured to couple with a gimbal connector of the gimbal, and an attachment mechanism configured to couple the tube to the chassis.