Wind-Powered Recharging for Coaxial Helicopter
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Solution Overview
Problem
Conventional helicopters face challenges with loud operation, high cost, and reduced reliability due to mechanical complexity, while also lacking the endurance and maneuverability of collective-pitch control systems.
Innovation Solution
A weight-shifting coaxial helicopter design featuring counter-rotating fixed-pitch rotor assemblies with a gimbal assembly and controller, allowing for quiet operation, increased reliability, and longer endurance through weight-shifting mechanisms for flight control, along with the ability to generate its own power using wind energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional helicopters use traditional single rotor or multirotor designs with mechanical control systems, then they can achieve flight control, but they suffer from loud operation, high cost, and reduced reliability due to mechanical complexity
Solution Approach 1:
The patent replaces traditional mechanical flight control systems with a weight-shifting mechanism. Instead of using complex mechanical linkages, swashplates, and control horns found in conventional helicopters, the invention uses a simple weight that can be repositioned along rails to control rotor tilt and从而实现 flight control. This substitution of mechanical control with a weight-shifting system directly reduces device complexity and improves reliability by eliminating numerous mechanical components.
2Duration of action of moving object
If conventional helicopters use fixed-pitch or collective-pitch rotor systems, then they can achieve flight control, but they lack endurance and maneuverability
Solution Approach 1:
The patent implements a dynamic control system where a single weight can be repositioned in three-dimensional space along orthogonal rails. This dynamic weight-shifting mechanism allows continuous adjustment of rotor tilt in multiple directions, providing both endurance through efficient flight control and superior maneuverability compared to fixed-pitch or collective-pitch systems. The ability to dynamically reposition the weight enables the helicopter to adapt to various flight conditions and perform complex maneuvers.
3Duration of action of moving object
If helicopters are designed for long endurance operations, then they can achieve extended flight time, but they become less transportable and harder to deploy
Solution Approach 1:
The patent employs a modular design where the weight-shifting mechanism is divided into orthogonal rail segments that can be independently positioned. This segmentation allows the control system to be compact and easily packaged for transport, while still providing full three-dimensional weight repositioning capability for extended endurance operations. The modular structure enables the helicopter to be disassembled or folded for easy deployment by other aircraft or in confined spaces.
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 design achieves quiet operation, increased reliability, and longer endurance with fewer moving parts, enabling self-sustaining flight and efficient power generation, while being highly transportable and deployable.
Implementation Method 1
orient the plurality of first and second fixed-pitch blades into a position that permits wind to rotate the first and second fixed-pitch blades and thereby charge the power source
Data Source
AI summary
A helicopter includes a propulsion system, gimbal assembly, and a controller. The propulsion system includes a first and second rotor assembly, wherein the first rotor assembly comprises a first motor coupled to a first rotor, the first rotor comprising a plurality of first fixed-pitch blades and the second rotor assembly comprises a second motor coupled to a second rotor, the second rotor comprising a plurality of second fixed-pitch blades. The second rotor is coaxial to the first rotor and is configured to be counter-rotating to the first rotor. The controller is communicably coupled to the gimbal assembly and is configured to provide instructions to at least one of the first or second gimbal motors in order to orient the plurality of first and second fixed-pitch blades into a position that permits wind to rotate the first and second fixed-pitch blades and thereby charge the power source.