Wave Pool Surfboard Composite Shell for Impact Damage Resistance
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Solution Overview
Problem
Traditional surfboards are not designed to withstand the high repetition and impact of wave pools, leading to frequent damage and increased maintenance costs for operators, while surfers face equipment damage due to the harsh environment.
Innovation Solution
A surfboard constructed with a purpose-molded core, high-impact-resistant fiber reinforcements, and a thermoformable plastic outer shell, specifically engineered for wave pools, using materials like Innegra fibers and ABS to enhance durability and performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional surfboards are used in wave pools, then surfing performance is maintained, but durability and resistance to impact damage deteriorate significantly
Solution Approach 1:
The surfboard employs a composite construction combining a polyurethane foam core with fiberglass reinforcement layers and a polyethylene outer shell. This multi-material composite structure provides superior impact resistance and durability compared to traditional single-material surfboards, enabling the board to withstand the harsh wave pool environment with concrete surfaces and high-velocity waves.
Solution Approach 2:
The patent applies different material properties to different parts of the surfboard: the polyethylene outer shell provides enhanced impact resistance at the nose and tail where damage is most common, while the fiberglass reinforcement provides structural strength throughout the board. This localized application of enhanced materials addresses the specific damage patterns experienced in wave pools without unnecessarily increasing weight or complexity throughout the entire board.
2Reliability
If surfboards are designed for high durability in wave pools, then resistance to damage improves, but weight increases
Solution Approach 1:
The polyethylene outer shell and additional fiberglass reinforcement are applied specifically to high-impact zones such as the nose, tail, and rails of the surfboard, rather than uniformly throughout the entire board. This localized reinforcement provides enhanced damage resistance where it is most needed in the wave pool environment while minimizing the overall weight increase that would result from full-board reinforcement.
Solution Approach 2:
The combination of polyurethane foam core, fiberglass reinforcement, and polyethylene shell creates a composite structure where each material contributes specific properties: the foam provides buoyancy and shock absorption, the fiberglass provides tensile strength, and the polyethylene provides impact resistance. This optimized composite construction achieves high durability without excessive weight gain compared to solid construction methods.
3Ease of manufacture
If wave pools operate with traditional surfboard fleets, then initial equipment costs are lower, but maintenance costs and operational downtime increase
Solution Approach 1:
The patent extracts and addresses the specific problem of frequent surfboard damage in wave pools by designing a specialized board construction tailored to this environment. Rather than attempting to modify traditional boards or operate without specialized equipment, the invention creates a dedicated solution that eliminates the need for frequent repairs and replacements, thereby increasing operational availability and reducing downtime.
Solution Approach 2:
The invention effectively counters the 'disposable' nature of traditional surfboards in wave pools by creating a durable, long-lasting board design. While the initial manufacturing cost may be slightly higher due to the specialized composite construction, the extended service life and reduced frequency of replacement mean that over time, the total cost of ownership decreases, and operational availability increases significantly compared to using traditional boards that require frequent replacement.
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 surfboard provides superior durability and resistance to breakage, reducing repair frequency and enhancing user satisfaction, thus increasing profitability for operators and extending the lifespan of surfboards in both wave pools and natural environments.
Implementation Method 1
a polyethylene shell that protects the core from breakage and damage
Implementation Method 2
a fiberglass reinforcement that strengthens the board
Data Source
AI summary
A wave pool surfboard has a complex but effective method of manufacture. An EPS blank is molded to the approximate shape, then sanded to a final shape. A variety of strengthening materials, including ABS and several types of fiberglass, are laid down upon the top, bottom, and rails (sides) of the board, then attached to the blank with epoxy foam, which is applied with a spray gun. Special protection is given to the nose, tail, and rails of the surfboard, as these are the most commonly damaged parts in a wave pool environment. Fin boxes are installed, and then the surfboard is placed into a vacuum mold where it is fused to a pre-thermoformed ABS sheet (by heat and vacuum) which becomes the protective surface of the board. The surfboard is removed from the mold, trimmed, rail laminated, rail puttied and sanded, painted, pin-lined and finished with a UV-stable clearcoat.