UAV Frame Vibration Isolation via Elastic Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Unmanned Aerial Vehicles (UAVs) face challenges with vibrations affecting motion-sensitive sensors and cameras, and existing materials lack structural integrity and durability for flight operations.
Innovation Solution
A frame structure comprising a first, second, and third frame portion, where the second frame portion is sandwiched or motion-isolated between the first and third, with elastic coupling to dampen vibrations from aerial propulsion devices, and using a combination of materials like plastic and carbon fiber for enhanced structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If materials like plastic, Styrofoam, or ceramic are used for UAV frame construction, then ease of manufacture is improved, but structural integrity and rigidity deteriorate
Solution Approach 1:
The patent employs composite materials by combining plastic frame portions with carbon fiber reinforcement. The carbon fiber elements are integrated into the plastic structure to enhance structural integrity, rigidity, and durability while maintaining the ease of manufacture benefits of plastic molding. This composite approach resolves the contradiction between easy manufacturing and structural strength.
2Measurement precision
If vibration dampening structures are added to isolate sensors from propulsion devices, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The UAV frame is segmented into distinct portions: a first frame portion carrying propulsion devices, a second frame portion carrying sensors, and a third frame portion. These segments are connected through elastic coupling elements that provide vibration isolation. This segmentation allows the sensor portion to be isolated from vibrations generated by the propulsion devices, improving measurement precision while maintaining manageable device complexity through modular design.
Solution Approach 2:
Elastic coupling elements serve as intermediary components between the propulsion device frame portion and the sensor frame portion. These intermediaries absorb and dampen vibrations, preventing them from reaching the motion-sensitive sensors. The use of elastic couplings as mediators effectively isolates sensors from harmful vibrations without requiring complex active vibration control systems.
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
Effectively reduces vibrations transferred to motion-sensitive components and enhances structural integrity, ensuring stable operation and improved durability of UAVs.
Implementation Method 1
the second frame portion and one or more of the first frame portion or the third frame portion may be elastically or flexibly coupled together for dampening vibration caused by the at least one vibration source arranged on the second frame portion
Implementation Method 2
the second frame portion and one or more of the first frame portion or the third frame portion may be elastically or flexibly coupled together
Data Source
AI summary
Embodiments described herein relates to an Unmanned Aerial Vehicle (UAV) having vibration dampening and isolation capabilities, the UAV including a first frame portion, a second frame portion, and a third frame portion. Each of the first frame portion, the second frame portion, and the third frame portion is separated from one another. At least one first support member inelastically coupling the first frame portion and the third frame portion. At least one second support member elastically coupling the second frame portion and one or more of the first frame portion or the third frame portion to isolate the first frame portion and the third frame portion from vibration of the second frame portion.