Catamaran Paddle Board Stability via Segmented Hulls
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Solution Overview
Problem
Personal watercraft stand-up paddle boards have a limited range of balance and center of gravity, leading to instability and a higher risk of falling when users move away from the centerline, restricting their operational stability and carrying capacity.
Innovation Solution
The paddle board is configured in a catamaran design with rungs (pontoons) that expand the center of gravity by moving the buoyancy attributes to the starboard and port sides, increasing the operational stability and carrying capacity, and incorporating features like retractable skegs and stabilizer fins for enhanced buoyancy and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the paddle board uses a traditional single-hull elongated oval shape, then the structure is simple and easy to manufacture, but the center of gravity area is limited causing instability when users move away from the centerline
Solution Approach 1:
The paddle board is divided into two separate hulls (port side hull and starboard side hull) connected by a deck, forming a catamaran configuration. This segmentation creates two distinct buoyancy centers that are separated horizontally, thereby expanding the overall center of gravity area and improving stability without requiring a single complex large-hull design
Solution Approach 2:
The patent transitions from a single-hull design to a two-hull catamaran configuration, adding a spatial dimension to the center of gravity distribution. By positioning buoyancy attributes on both the port and starboard sides, the design expands the stable platform area in the horizontal plane, giving users a larger range of motion while maintaining balance
2Adaptability or versatility
If the paddle board expands the center of gravity by adding rungs (pontoons) on port and starboard sides, then the range of balance and stability are improved, but the device complexity increases
Solution Approach 1:
The rungs (pontoons) are merged with the hull structure, where the hulls themselves serve as the buoyant elements that provide the expanded center of gravity. This integration eliminates the need for separate, complex rung structures while still achieving the desired expansion of the center of gravity area for improved balance range
3Quantity of substance
If the paddle board uses a catamaran configuration with rungs, then the carrying weight capacity increases, but the manufacturing complexity and cost increase
Solution Approach 1:
The deck is designed with localized reinforcement features (such as stringers or bulkheads) at specific positions to optimize structural strength and weight distribution. This allows the deck to handle higher carrying capacities through strategic local strengthening rather than requiring a complete redesign of the entire structure, thereby controlling manufacturing complexity
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 configuration significantly reduces the likelihood of falling and allows for a higher carrying weight capacity without impacting performance, providing a larger platform for users and improved stability during use.
Implementation Method 1
a hull for displacing the water
Implementation Method 2
by moving the center of buoyancy attributes away from the centerline and off to the starboard and port sides of the board using rungs (e.g., pontoons, catamaran)
Data Source
AI summary
A deck coupled to a paddle board having a base having a longitudinal axis, an axial axis substantially perpendicular to the longitudinal axis. A base length that is substantially in line with longitudinal axis, a paddle board width that is substantially in line with the axial axis. A bow side having a hull for displacing the water, a stern side, a port side, and a starboard side. A first rung integrally coupled to the port side, the first rung having a first rung bow side, a first rung stern side, and a first rung base positioned between the first rung bow side and the first rung stern side. A second rung integrally coupled to the starboard side, the second rung having a second rung bow side, a second rung stern side, and a second rung base positioned between the second rung bow side and the second rung stern side.