Tethered Propulsion Unit for Buoyant Aerial Vehicle Maneuvering
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Solution Overview
Problem
Buoyant aerial vehicles face substantial power requirements for propulsion, limiting their maneuverability due to the need for batteries or fuel to power thrusters.
Innovation Solution
A buoyant aerial vehicle system featuring a wing-based propulsion unit suspended by a tether, powered by an electrical motor and propeller, with adjustable flight paths and solar panels for energy generation, allowing for efficient control of lift and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional thrusters with batteries or fuel are used for propulsion, then the aerial vehicle can achieve controlled lateral movement, but the power requirements become substantial and maneuverability is limited
Solution Approach 1:
The propulsion system is segmented into multiple independent airfoils (primary and secondary) that can be individually controlled. Each airfoil can generate lift and thrust independently, allowing the vehicle to achieve maneuverability through distributed control rather than relying on a single high-power thruster system.
Solution Approach 2:
The airfoils are designed with dynamic control surfaces (ailerons) that can adjust their angle of attack in real-time. This dynamic adjustment allows the system to optimize lift and drag characteristics during different phases of flight, improving maneuverability while minimizing energy consumption compared to constant-thrust traditional systems.
2Ease of operation
If multiple thrust generating devices are installed for better control, then maneuverability improves, but device complexity and weight increase
Solution Approach 1:
Each airfoil serves multiple functions: it generates lift for flight, provides thrust through its propulsion unit, and enables control through its ailerons. This multi-functionality allows the system to achieve comprehensive control capability without needing separate dedicated components for each function, reducing overall device complexity.
Solution Approach 2:
The invention merges the functions of lift generation, propulsion, and control into a single integrated airfoil structure. The primary and secondary airfoils work together as a unified propulsion system, combining what would traditionally require separate engines, wings, and control surfaces into a more compact and less complex configuration.
3Use of energy by moving object
If solar panels are added to the airfoils for energy generation, then power requirements are reduced, but the surface area and device complexity increase
Solution Approach 1:
The airfoils are designed to serve dual purposes: aerodynamic function (lift and propulsion) and energy generation function. By integrating solar panels directly onto the airfoil surfaces, the system generates power without adding separate solar array structures, thereby reducing overall system complexity while maximizing energy self-sufficiency.
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 solution reduces power requirements and enhances maneuverability by leveraging atmospheric conditions and wind, while minimizing the need for multiple thrust devices and providing additional surface area for solar panels.
Implementation Method 1
a balloon configured to store a gas
Implementation Method 2
a primary airfoil coupled to the fuselage; a secondary airfoil coupled to the fuselage
Implementation Method 3
the thrust generating device includes an electrical motor and a propeller rotatable by the electrical motor
Implementation Method 4
a propeller rotatable by the electrical motor
Implementation Method 5
At least one of the primary airfoil or the secondary airfoil includes at least one solar panel
Data Source
AI summary
A buoyant aerial vehicle includes: a balloon configured to store a gas; a payload coupled to the balloon; and a propulsion unit coupled to the payload by a tether. The propulsion unit includes: a fuselage having a substantially longitudinal shape, a first end, and a second end; a primary airfoil coupled to the fuselage; a secondary airfoil coupled to the fuselage at one of the first end or the second end; and a thrust generating device disposed at one of the first end or the second end and configured to move the propulsion unit relative to the payload along a propulsion flight path. The movement of the propulsion unit imparts movement of the buoyant aerial vehicle along a vehicle flight path.