Pneumatic Wing Deployment Mechanism for Rapid High-Speed Aerial Vehicles
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Solution Overview
Problem
Existing wing deployment mechanisms for aerial vehicles are not suitable for high-speed applications and require significant space for storage, making them inefficient for compact and rapid deployment under high aerodynamic loads.
Innovation Solution
A pneumatic wing deployment mechanism using a cylinder, gas canister, and damping springs, which includes a pyrotechnic valve and a spring system to rapidly rotate and lock the wing into place, capable of withstanding high aerodynamic loads and allowing for quick deployment within one second.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a deployment mechanism is used to enable compact storage and rapid deployment, then storage efficiency and deployment speed are improved, but device complexity increases
Solution Approach 1:
The patent employs a pneumatic cylinder to provide rapid and reliable wing deployment force. The pneumatic system enables quick activation and controlled movement of the wing from folded to deployed position, achieving high deployment speed while managing the complexity through standardized pneumatic components
Solution Approach 2:
The wing is pre-folded into a compact configuration within the fuselage before deployment is needed. The deployment mechanism is pre-positioned and ready to activate immediately when required, enabling rapid transition from stored to operational state without complex real-time decision-making or multi-step procedures
2Device complexity
If the wing is kept in open state to simplify the structure, then device complexity is reduced, but space requirements increase making storage and transportation difficult
Solution Approach 1:
The wing is divided into multiple segments that can be folded relative to each other, allowing the entire wing structure to be compacted into a small volume within the fuselage. This segmentation enables the wing to transition between extended flight configuration and compact storage configuration
Solution Approach 2:
The wing segments are nested within the fuselage when not in use, with the wing folded inside the body cavity. This nesting arrangement maximizes space utilization and allows the aircraft to maintain a compact profile during storage and transportation while still accommodating the full wing span when deployed
3Device complexity
If simple hinge mechanism is used to connect wing to body, then device complexity is reduced, but reliability under high aerodynamic load and high speed conditions deteriorates
Solution Approach 1:
The pneumatic cylinder provides controlled, reliable force to position the wing at the correct angle and maintain it there under high aerodynamic loads. The pneumatic system offers adjustable pressure and force control, ensuring consistent and reliable wing positioning regardless of flight conditions
Solution Approach 2:
The connection mechanism transitions from a static simple hinge to a dynamic system that can actively adjust and maintain wing position. The pneumatic actuation system allows the wing to be dynamically positioned and held at optimal angles during high-speed and high-load conditions, improving reliability while managing complexity through controlled actuation
4Ease of manufacture
If conventional materials and heat treatment are used, then manufacturing feasibility is improved, but meeting high aerodynamic load and impact load requirements becomes difficult
Solution Approach 1:
The patent specifies using high-strength materials such as titanium alloys or advanced composites for the wing and deployment mechanism components. These materials provide superior strength-to-weight ratio and resistance to aerodynamic and impact loads while remaining manufacturable through established industrial processes
Solution Approach 2:
The patent specifies heat treatment parameters and material specifications (e.g., C45 or 40Cr steel with controlled hardness) to optimize the mechanical properties of components. By carefully controlling material composition, heat treatment conditions, and final mechanical properties, the design achieves both manufacturability and the required strength under high aerodynamic and impact loads
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 mechanism ensures precise wing positioning and rapid deployment under severe aerodynamic conditions, enhancing storage and operational efficiency while maintaining structural integrity and compactness.
Implementation Method 1
a pneumatic cylinder with spring system... using compressed air... The flow of gas inside the pipes is controlled by a pyrotechnic valve. By filling the chamber, the gas provides a pressure which propels the pneumatic piston to move
Implementation Method 2
a damping spring system... capable of withstanding high aerodynamic loads... The role of the third spring in such situation is to lower the velocity by its tension force. Also, it decreases the collision force acing on the locking pin during the impact
Data Source
AI summary
A wing deployment mechanism and a design method using a pneumatic cylinder with transmission spring system (assembly) are provided. The deployment mechanism comprises frame, wing, deployment cylinder, gas canister, rotation shaft, bolts, groove, locking pin, dowel pin, flange, first spring, second spring, dowel pin hole, looking pin hole, slider, third spring. The design method includes step 1: determining the problem's specifications; step 2: constructing the equations of motion; step 3: designing a primary scheme for a system of pneumatic cylinder with transmission spring. Step 4: determining the parameters for the system; and step 5: validating the design.