Adjustable Ballast Keel for Decoy Buoyancy Control
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Solution Overview
Problem
Existing ballast keel systems in decoys are fixed, leading to unbalanced floatation and flipping or falling on their side due to inability to adjust buoyancy levels.
Innovation Solution
An adjustable Ballast Keel system that allows weight distribution through keel ports to control buoyancy, maintaining floating objects upright by independently adjusting the center of gravity of the decoy's head and body assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed ballast keel system is used, then the structure is simple, but the floating object cannot maintain balanced floatation and flips or falls on its side
Solution Approach 1:
The ballast keel system is divided into multiple segments: a keel body with multiple ports, individual ballast weights that can be independently positioned, and a mechanism for adding or removing weights. This segmentation allows independent adjustment of buoyancy distribution to achieve balanced floatation without requiring a completely complex redesign of the keel structure.
Solution Approach 2:
The fixed keel is transformed into a dynamic system where ballast weights can be moved between different ports along the keel. This dynamic adjustment capability allows the system to adapt to different floating conditions and maintain balance, resolving the contradiction between structural simplicity and floatation stability.
2Adaptability or versatility
If fixed keels are used, then the manufacturing process is simple, but the buoyancy level cannot be adjusted causing the decoy to flip
Solution Approach 1:
The keel is designed with multiple discrete ports along its length, and ballast weights are separate components that can be inserted into these ports. This segmentation enables adjustable buoyancy while keeping the manufacturing process relatively simple, as each component can be manufactured independently using standard processes.
Solution Approach 2:
The keel structure serves multiple functions: it provides structural support, defines the floatation profile, and acts as a track for positioning ballast weights. This multi-functionality increases adaptability without proportionally increasing manufacturing complexity, as the same basic structure accomplishes multiple goals.
3Ease of operation
If fixed ballast brackets are used, then the structure is straightforward, but the center of gravity cannot be adjusted independently for head and body assemblies
Solution Approach 1:
The ballast system is segmented into separate head and body components, each with its own keel and ballast weights. This allows independent adjustment of the center of gravity for each section by moving weights within their respective keels, achieving precise control without requiring a completely complex integrated system.
Solution Approach 2:
The static bracket system is replaced with dynamic ballast assemblies where weights can be moved along the keel length. This dynamic capability enables independent center of gravity adjustment for head and body while maintaining relatively simple bracket structures that only need to provide mounting points and guidance.
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 lifelike movement and stable orientation of decoys by allowing precise control over buoyancy levels, preventing capsizing and violent movements in choppy waters.
Implementation Method 1
A head weight is joined to the head keel bracket and configured to lower a head assembly center of gravity. Body keel weights joined to the body keel bracket at the planar bottom surface and configured to lower the body assembly center of gravity.
Implementation Method 2
The floating decoy head comprises a head connected to the body of the floating decoy... An adjustable Ballast Keel system that allows weight distribution through keel ports to control buoyancy...
Data Source
AI summary
A decoy assembly is configured to have an adjustable buoyancy level. The decoy assembly has a head assembly with a decoy head. A decoy body has a body planar bottom surface and a head opening configured to accommodate the head assembly. The head assembly further has a head keel bracket, joined to the planar bottom surface. A head weight is joined to the head keel bracket and configured to lower a head assembly center of gravity. The decoy assembly has body keel brackets and body keel weights joined to the body keel bracket at the planar bottom surface and configured to lower the body assembly center of gravity. Adjusting the body assembly center of gravity independently of the head assembly center of gravity provides lifelike movement for the decoy assembly and allows the orientation of the decoy to be varied for a natural looking presentation.