Wind Tolerant Ball with Venturi Apertures and Dimples
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Solution Overview
Problem
Pickleballs are adversely affected by wind during outdoor play due to their lightweight and hollow construction, leading to unpredictable flight paths and making games unplayable in strong winds, as existing designs focus on either airflow around or through solid or hollow balls without a holistic approach.
Innovation Solution
A wind-tolerant ball with a thin-walled hollow sphere design featuring an array of apertures with dimples and internal protuberances, where the exterior and interior surfaces manage aerodynamic airflow to minimize wind impact, using a 'venturi' shaped aperture sidewall to enhance airflow and reduce drag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the ball is made lightweight with hollow construction, then it is easier to propel and bounce, but it becomes more susceptible to wind effects
Solution Approach 1:
The ball incorporates dimples at specific locations on its surface, creating localized aerodynamic features that manage airflow. These dimples are strategically positioned to promote turbulent flow and reduce wind sensitivity without requiring a complete redesign of the entire ball structure, thus maintaining light weight while improving wind tolerance.
Solution Approach 2:
The patent modifies aerodynamic parameters by introducing dimples with specific depth and diameter ratios. This changes the airflow characteristics around the ball, transitioning from laminar to turbulent flow in controlled regions, which helps stabilize flight paths and reduce the adverse effects of wind on the lightweight hollow ball.
2Object-affected harmful factors
If aerodynamic features are added to manage airflow, then wind tolerance improves, but manufacturing complexity increases
Solution Approach 1:
The aerodynamic management system is segmented into discrete dimples distributed across the ball surface. Each dimple is an independent feature that can be manufactured separately, allowing for simplified production processes. This segmentation enables complex aerodynamic functionality to be achieved through multiple simple, identical features rather than one complex integrated structure.
Solution Approach 2:
The dimples are designed with spherical or hemispherical curvature, matching the overall spherical geometry of the ball. This curvature approach simplifies manufacturing by using the same tooling and processes for both the ball body and the dimples, reducing complexity while achieving the desired aerodynamic flow management.
3Object-affected harmful factors
If the ball weight is increased to reduce wind susceptibility, then wind tolerance improves, but it may exceed official pickleball parameters
Solution Approach 1:
The patent optimizes the dimple parameters (depth, diameter, spacing) to achieve the desired aerodynamic performance while keeping the ball weight within official pickleball specifications. By carefully controlling these geometric parameters, the design achieves wind tolerance without requiring excessive weight increase, thus maintaining compliance with official parameters.
Solution Approach 2:
Instead of simply adding weight to counteract wind effects, the patent converts the aerodynamic interaction between air and ball into a beneficial force. The dimples create controlled turbulence that stabilizes flight, turning the previously harmful wind-ball interaction into a stabilizing mechanism, thereby achieving wind tolerance without proportionally increasing weight.
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 ball maintains consistent flight and reduces the influence of spin, making it less susceptible to wind, while being marginally heavier to adhere to official pickleball parameters, ensuring playability in windy conditions.
Implementation Method 1
exterior and interior surfaces that are designed to manage and promote aerodynamic airflow around and through the ball
Implementation Method 2
using a 'venturi' shaped aperture sidewall to enhance airflow and reduce drag
Implementation Method 3
an array of apertures with dimples and internal protuberances, where the exterior and interior surfaces manage aerodynamic airflow
Data Source
AI summary
The ball is a thin-walled hollow sphere that includes an array of apertures with dimples in a pattern that are concentric to the aperture array. Dimples are provided on the exterior surface of the ball between the apertures with the pattern and dimensions of the dimples varying based on proximity to the apertures. Internal protuberances are provided on the interior surface of the hollow ball such that the interior surface also manages aerodynamic airflow through the ball. Channels are also provided around each of the apertures within the ball which may intersect proximate dimples or be spaced therefrom. The ball also includes apertures having converging and diverging sidewalls that form a venturi shape to increase inflow air into the apertures and outflow air out of the apertures. Finally, the ball also maintains a weight:diameter ratio within a fixed range.