Waterborne Payload Deployment Vessel Buoyancy Control
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Solution Overview
Problem
Current methods for deploying waterborne payloads face challenges such as damage risk due to adverse weather conditions and parachute entanglement, especially when deploying from watercraft or aircraft, as they often require slowing or stopping the vessel, which is impractical and risky.
Innovation Solution
A deployment vessel designed to be initially negatively buoyant, which changes to positive buoyancy after a certain horizontal distance is submerged, allowing it to surface and release the payload safely, featuring a hull with a ballast system, control surfaces, and a flotation device for stabilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If watercraft slows or stops during payload deployment to avoid damaging the payload, then payload safety is improved, but operational capability under adverse weather conditions deteriorates
Solution Approach 1:
The patent introduces a deployment vessel as an intermediary between the watercraft and the payload. This vessel travels with the watercraft during adverse weather, then deploys the payload in a controlled manner by changing its buoyancy state, thereby protecting both the payload and enabling operation under conditions where the watercraft cannot slow or stop.
Solution Approach 2:
The system is segmented into three independent components: the watercraft (which maintains operational capability), the deployment vessel (which handles payload deployment), and the payload. This segmentation allows the watercraft to continue operating under adverse weather while the deployment vessel independently manages payload release through buoyancy control.
2Device complexity
If aircraft drops payload directly into water to simplify deployment, then deployment complexity is reduced, but payload damage risk increases
Solution Approach 1:
The deployment vessel is designed with initial negative buoyancy to cushion the impact with water. The vessel's hull and buoyancy control system are prepared in advance to absorb impact forces, protecting the payload during water entry without requiring complex deployment mechanisms from the aircraft.
Solution Approach 2:
The deployment vessel serves as an intermediary that simplifies the aircraft's role to a simple drop while providing protected payload deployment. The vessel absorbs the complexity of controlled water entry and payload release, allowing the aircraft to perform a simple drop operation.
3Reliability
If parachute is used to mitigate impact damage, then payload safety is improved, but parachute entanglement risk is introduced
Solution Approach 1:
The patent extracts the deceleration function from the parachute system and transfers it to the deployment vessel's buoyancy control system. By removing the parachute, the harmful entanglement effect is eliminated while the beneficial impact mitigation is preserved through the vessel's controlled buoyancy changes.
Solution Approach 2:
The mechanical parachute system is replaced with a buoyancy-based deployment mechanism. The deployment vessel uses controlled changes in buoyancy (from negative to positive) to manage deceleration and water entry, substituting a more reliable mechanical system that eliminates parachute-related entanglement problems.
4Ease of operation
If deployment vessel changes buoyancy from negative to positive after establishing horizontal distance, then deployment control is improved, but deployment time increases
Solution Approach 1:
The deployment vessel is pre-configured with negative buoyancy and ballast systems before deployment. The horizontal distance requirement allows preliminary actions (ballast release, buoyancy adjustment) to be completed before the critical surfacing and payload release phases, improving control without excessive time delay.
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 safe and controlled deployment of payloads by minimizing risk of damage during entry into water, reducing reliance on parachutes and improving operational feasibility in various weather conditions.
Implementation Method 1
one or more apparatus or systems for changing a buoyancy of the deployment vessel from an initial negative buoyancy to a subsequent positive buoyancy
Implementation Method 2
a flotation device connected to the hull, wherein the deployment vessel (including any accompanying payload) is initially negatively buoyant and becomes positively buoyant upon release of the ballast and deployment of the flotation device
Implementation Method 3
the deployment vessel moves horizontally through the water as it submerges vertically downward under a force of gravity
Data Source
AI summary
A method for deploying a payload into a body of water using a deployment vessel, the deployment vessel including a hull defining a payload compartment, the method including positioning the payload in the payload compartment of the deployment vessel, the deployment vessel and the payload having a buoyancy, wherein the buoyancy is initially negative, deploying the deployment vessel into the water at a drop zone, wherein the deployment vessel moves horizontally through the water as it submerges vertically downward under a force of gravity, changing the buoyancy to positive after a minimum horizontal distance is established between the drop zone and the deployment vessel, thereby causing the deployment vessel to surface and, after the surfacing of the deployment vessel, opening the hull to release the payload therefrom.