Solar Drone Double-Layer Fuselage Stability
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Solution Overview
Problem
Large drones face stability issues due to increased torque and weight when trying to maintain balance during flight, as the distance between rotors exceeds 50 cm, requiring more power to counteract gravity while increasing volume and weight.
Innovation Solution
A large drone design featuring a double-layered fuselage with horizontally arranged support rods and propellers, powered by solar energy, which maintains stability and reduces power requirements through a lightweight structure and efficient power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the distance between rotors exceeds 50 cm to create a large drone, then the lifting capacity and payload capability are improved, but the torque increases and stability deteriorates due to motor force fluctuations
Solution Approach 1:
The patent transitions from a single-layer rotor arrangement to a three-dimensional multi-layer structure. The fuselage includes an upper layer with upper rotors and a lower layer with lower rotors, vertically stacked. This spatial dimensionality change allows the drone to achieve large volume and lifting capacity while maintaining stability through the distributed multi-layer configuration, preventing the torque and stability issues associated with simply increasing horizontal distance between rotors.
Solution Approach 2:
The drone's rotor system is segmented into multiple independent layers (upper layer and lower layer), each with its own rotors. This segmentation allows independent control and optimization of each layer's contribution to lifting and stability, enabling the large drone to maintain flight stability despite the increased torque from larger rotor distances.
2Stability of the object's composition
If the volume of the drone increases to improve stability, then the stability is improved, but the weight increases proportionally requiring more power
Solution Approach 1:
The fuselage is constructed using a lightweight framework composed of support rods and connecting structures that form a rigid yet light multi-layer shell. This thin-walled framework structure provides the necessary volume and stability for large drone operation while minimizing the weight increase that would normally accompany increased volume, thereby reducing the power required for flight.
Solution Approach 2:
The patent employs a composite structural design combining lightweight support rods, fuselage materials, and rotor components. This composite construction achieves the required structural integrity and stability for large volume drones while keeping the overall weight minimal, thus reducing the power consumption needed to overcome gravity.
3Force
If the distance between centers of rotors exceeds one meter, then the lifting capacity is improved, but the torque increases significantly causing poor stability due to motor force fluctuations
Solution Approach 1:
Instead of increasing the horizontal distance between rotors in a single plane, the patent utilizes the vertical dimension by stacking rotors in multiple layers (upper and lower layers). This allows the distance between rotor centers to exceed one meter for increased lifting capacity while distributing the torque generation across multiple layers, which stabilizes the system against motor force fluctuations.
Solution Approach 2:
The rotor system is divided into segmented layers, with each layer contributing to the total lifting force. This segmentation distributes the torque generation across multiple independent rotor groups, reducing the impact of individual motor fluctuations and maintaining flight stability even with large overall rotor distances.
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 double-layered fuselage design enhances stability and balance during flight by maintaining a low weight increase while increasing volume, allowing the drone to resist gravity and maintain stability with reduced power consumption.
Implementation Method 1
The solar cell module is fixed above the upper layer and provides power for components of the large drone, such as the motors
Data Source
AI summary
The invention discloses a large drone that is powered by solar energy. In addition, the drone includes a large, lightweight fuselage that not only keeps balance and stability but also reduces the required power during flight.