Multi-Rotor Aircraft With Variable Annular Airframe for Tight Spaces
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Solution Overview
Problem
Large multi-rotor aircraft require large areas for take-off and landing, limiting their application scope and increasing the cost and complexity of automatic storage solutions.
Innovation Solution
A multi-rotor aircraft design featuring an annular airframe with movable frames and actuation components that adjust the enclosed area by moving frames apart or together, allowing for size changes during flight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the multi-rotor aircraft uses a large enclosed area airframe, then it can perform specialized tasks like drone capture or aerial displays, but it requires large area for take-off and landing which limits application scope
Solution Approach 1:
The airframe transitions from a static structure to a dynamic one by enabling the frames to move relative to each other. The connecting units allow the airframe to change its enclosed area from small to large configuration, enabling the aircraft to perform take-off/landing in limited spaces while expanding for specialized tasks during flight
Solution Approach 2:
The airframe is divided into multiple movable frames connected by connecting units, allowing independent movement of each frame. This segmentation enables the airframe to reconfigure its shape and size by adjusting the relative positions of individual frames, resolving the contradiction between compact storage and expanded functionality
2Extent of automation
If an automatic storage apparatus is designed to accommodate a large multi-rotor aircraft, then the aircraft can be automatically stored and charged, but the apparatus becomes large and expensive with increased transportation and installation difficulty
Solution Approach 1:
The aircraft's dynamic airframe allows it to automatically transition between compact and expanded configurations, enabling it to fit into smaller storage apparatus while maintaining full functionality. This reduces the size requirements for automatic storage facilities without sacrificing automation capabilities
Solution Approach 2:
The aircraft changes its physical parameters (enclosed area, shape) by moving frames relative to each other, allowing it to adapt to different storage conditions. This parameter change capability enables use of smaller, more cost-effective storage apparatus while maintaining automatic storage and charging functions
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
Enables the multi-rotor aircraft to operate in limited spaces by reducing its size for take-off and landing, and expand for specialized tasks like drone capture or aerial displays, enhancing maneuverability and versatility.
Implementation Method 1
the rotor units are used for providing lift for the multi-rotor aircraft to fly
Implementation Method 2
the actuation components are used for driving the adjacent frames to move away from each other or to move close to each other
Data Source
AI summary
A multi-rotor aircraft comprising a controller, an annular airframe, at least two first rotor units and at least two actuation components. Wherein, the annular airframe comprises at least two frames and at least two connecting units, adjacent frames are movably connected by at least one of the connecting units; the first rotor units are arranged on the annular airframe and are electrically connected with the controller, the first rotor units are used to provide lift for the multi-rotor aircraft to fly; the actuation components are arranged on the annular airframe and are electrically connected with the controller; when the multi-rotor aircraft flies, the actuation components are used for driving the adjacent frames to move away from each other or to move close to each other, so as to enlarge or reduce the enclosed area of the annular airframe respectively.