Suspended-Load Airframe Layout for Stable Aerial Control
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Solution Overview
Problem
Existing aerial vehicles face challenges in controlling stability and accuracy when suspending a load due to the weight distribution and configuration of support systems, which can be destabilized by the load and wind disturbances.
Innovation Solution
The aerial vehicle design includes a lift generator, supports, and a relay system where the heavier component is positioned in the center region of the airframe, with the lighter component outward, reducing weight imbalance and enhancing stability, and incorporating a motor assembly with waterproof and dustproof sections to minimize additional weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If attachments and winders are provided in an outer region of the airframe to suspend a load, then the load can be suspended from outside the airframe, but the weight of the outer side of the airframe increases, making the airframe unstable
Solution Approach 1:
The patent applies asymmetry in weight distribution by positioning the heavier attachment component in the center region and the lighter relay component in the outer region. This asymmetric arrangement counteracts the destabilizing effect of having suspension mechanisms in the outer region, thereby maintaining airframe stability while preserving load suspension capability.
2Adaptability or versatility
If the heavier attachment is located in the outer region, then the load can be suspended effectively, but the weight balance of the airframe deteriorates, reducing controllability
Solution Approach 1:
The patent employs asymmetry by strategically placing the heavier attachment in the center region and the lighter relay in the outer region. This asymmetric weight distribution maintains the airframe's center of gravity in a stable position, improving controllability while still enabling effective load suspension through the relay mechanism in the outer region.
Solution Approach 2:
The relay acts as an intermediary component that transfers the load suspension function from the outer region to the center region. By positioning the relay in the outer region and the attachment in the center, the system maintains effective load suspension while the center-mounted attachment ensures proper weight balance and controllability.
3Measurement precision
If multiple motors are provided in the outer region to adjust support lengths, then the load can be controlled precisely, but the weight of the outer side increases, affecting airframe stability
Solution Approach 1:
The patent applies asymmetry by positioning the heavier motors in the center region and the lighter relays in the outer region. This asymmetric arrangement allows precise load position control through the motor-driven support length adjustment while preventing the outer region from becoming excessively heavy, thereby maintaining airframe stability.
Solution Approach 2:
The relay serves as an intermediary that transmits the control function from the center-mounted motors to the outer region. This allows precise load control through motor actuation while the relay in the outer region ensures proper weight distribution and maintains airframe stability during operation.
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
This configuration improves the stability and control accuracy of the aerial vehicle by balancing weight distribution and reducing friction, allowing for precise maneuvering despite wind disturbances.
Implementation Method 1
a lift generator configured to generate lift for flight
Implementation Method 2
a relay configured to relay and support the supports between the load and the attachment
Data Source
AI summary
An aerial vehicle configured to fly with a load suspended therefrom includes a lift generator configured to generate lift for flight, a plurality of supports configured to support the load, an attachment to which the supports are attached, and a relay to relay and support the supports between the load and the attachment. One of the attachment and the relay is outward of, in an airframe of the aerial vehicle, an other one of the attachment and the relay in a plan view.