Multi-rotor UAV Foldable Landing Stand and Segmented Fuselage
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Solution Overview
Problem
Existing multi-rotor UAVs face challenges with stability during takeoff and landing due to vibration and weight, and their landing stands require a large support area, leading to increased material costs and weight.
Innovation Solution
The design features a fuselage with integrally formed upper and lower housings connected non-detachably, a detachable bottom cover for easy electronic module access, and a foldable landing stand with soft rubber buffering, reducing weight and material usage while enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the upper fuselage casing and upper aircraft arms are integrally formed to obtain an upper aircraft housing, then the connection strength between fuselage and aircraft arms is improved, but the ease of repair for internal electronic circuits deteriorates
Solution Approach 1:
The fuselage is divided into upper and lower parts with a detachable bottom cover, allowing the electronic apparatus to be accessed and repaired by removing only the bottom cover rather than disassembling the entire integrated housing. This segmentation enables independent access to internal components while maintaining the structural integrity of the integrated upper housing.
2Stability of the object's composition
If the landing stand support surface area is increased to prevent sideways dumping, then the stability of the UAV is improved, but the weight of the aircraft body increases
Solution Approach 1:
The landing stand is designed to be foldable rather than fixed, allowing it to be extended during takeoff and landing operations to provide stability, and folded during flight to reduce weight and drag. This dynamic configuration enables the system to adapt its structural properties based on operational requirements.
3Reliability
If the landing stand support surface area is increased to ensure stability during takeoff and landing, then the reliability is improved, but the material cost increases
Solution Approach 1:
The foldable landing stand allows the support structure to be deployed only when needed during takeoff and landing phases, rather than requiring a permanently large support surface. This reduces the total material required while maintaining reliability during critical operations.
4Ease of repair
If the bottom cover is detachably connected to the lower aircraft housing, then the ease of repair for electronic modules is improved, but the structural strength deteriorates
Solution Approach 1:
The detachable bottom cover creates a segmented structure where the access path for repair is separated from the main structural load-bearing paths. The cover is designed to detach for maintenance access while the integrated upper housing and aircraft arms maintain full structural strength for flight operations.
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 solution provides a stable and lightweight UAV with reduced vibration and material costs, as well as a more efficient landing mechanism that minimizes the contact area with the ground, thereby enhancing overall performance.
Implementation Method 1
every landing support leg comprises a main pole and a base soft rubber, wherein the base soft rubber enwraps a bottom of the main pole for buffering
Data Source
AI summary
A multi-rotor UAV (unmanned aerial vehicle) includes a fuselage, four aircraft wings and a landing stand, wherein the landing stand comprises four landing support legs, every landing support leg is installed below an outermost end of a corresponding aircraft wing to form a landing support structure of the UAV, every landing support leg comprises a main pole and a base soft rubber, wherein the base soft rubber enwraps a base of the main pole for buffering. The multi-rotor UAV of the present invention is stable while taking off or landing, and is light in weight.