Aerial Vehicle Counterweight Mechanism for Stable Load Orientation
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Solution Overview
Problem
Conventional aerial vehicles experience reduced flight efficiency when carrying loads due to tilting and wind interference, leading to balance issues and potential overturning during delivery, which affects delivery speed and accuracy.
Innovation Solution
An aerial vehicle design featuring a lift generating part, an arm part, a mounting part located behind the center of gravity, and a maintenance system with a counterweight and hinge mechanism that maintains the load's horizontal orientation and avoids the wake region of the propellers, allowing for efficient forward movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the mounting part is located behind the center of gravity to maintain load orientation, then the load stability is improved, but the flight efficiency deteriorates due to increased moment of inertia and reduced maneuverability
Solution Approach 1:
The patent introduces a counterweight mechanism that can be dynamically adjusted to balance the aerial vehicle when carrying loads. The counterweight compensates for the offset caused by positioning the mounting part behind the center of gravity, thereby maintaining both load stability and flight efficiency by dynamically adjusting the vehicle's center of gravity.
Solution Approach 2:
The mounting part is designed with dynamic positioning capabilities, allowing it to adjust its position and orientation during flight. This dynamic adjustment enables the system to optimize both load stability and flight efficiency by adapting to different flight phases and load configurations, rather than being fixed in a position that compromises overall performance.
2Productivity
If the mounting part is positioned to avoid wake region for efficient forward movement, then the flight efficiency is improved, but the load orientation control becomes more difficult
Solution Approach 1:
The patent introduces an intermediary connection mechanism between the mounting part and the aerial vehicle body. This intermediary structure includes flexible connections and orientation adjustment mechanisms that decouple the mounting part from direct wake region disturbances while maintaining precise load orientation control through active adjustment systems.
Solution Approach 2:
The system dynamically changes operational parameters such as mounting part orientation angles, connection stiffness, and control loop gains based on flight conditions. By adjusting these parameters in real-time, the system optimizes both forward movement efficiency and load orientation control, adapting to varying wake region effects during different flight phases.
3Measurement precision
If the maintenance means is added to maintain horizontal orientation, then the load delivery accuracy is improved, but the device complexity increases
Solution Approach 1:
The maintenance means is integrated with existing aerial vehicle systems such as the flight control system and propulsion system. The same actuators and control algorithms used for basic flight stabilization are also employed for load orientation maintenance, thereby improving delivery accuracy without proportionally increasing device complexity through dedicated separate systems.
Solution Approach 2:
The system employs self-regulating control mechanisms where the flight control system automatically adjusts propulsion and attitude to maintain both vehicle stability and load orientation. This self-service approach eliminates the need for complex dedicated maintenance mechanisms by leveraging the existing control infrastructure to simultaneously achieve multiple objectives.
Data Source
AI summary
An aerial vehicle has a loading section whereon a payload and the like can be loaded. The aerial vehicle is capable of traveling at least forward and backward, is provided with lift generation sections, arm sections for holding the lift generation sections, a loading section disposed on the arm sections and positioned posterior to the center of gravity of the aerial vehicle, and a maintaining means for maintaining the aerial vehicle at least in the horizontal attitude, and the loading section has a first connection part for maintaining a loaded object at least in the horizontal attitude. On the basis of the above mentioned, the payload can be prevented from entering slipstream regions created by propellers, improving flight efficiency.