Golf Ball Core Compression and Dimple Volume Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Golf balls struggle to achieve an optimal balance between ball speed, spin rate, and aerodynamic characteristics during flight, leading to inadequate flight distance and controllability.
Innovation Solution
A golf ball design featuring a core formed by crosslinking a rubber composition with specific hardness and compression, an inner cover made from ionomer resin, and an outer cover with a particular thickness and hardness, along with a dimple pattern that satisfies specific mathematical formulas to achieve appropriate aerodynamic characteristics and spin rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the spin rate is increased to achieve a large trajectory height, then the flight distance is improved, but the kinetic energy is lost excessively
Solution Approach 1:
The patent optimizes the compression value (A) within a specific range (90-120) and adjusts the hardness difference (B) between surface and center of the core, along with the weighted average hardness (Cs) of the cover layers, to achieve an optimal balance between spin rate and kinetic energy retention. This parameter optimization allows the ball to generate sufficient trajectory height while minimizing excessive spin-induced energy loss.
2Loss of energy
If the spin rate is decreased to retain kinetic energy, then the flight distance is improved, but the controllability is reduced
Solution Approach 1:
The patent establishes specific ranges for compression (A: 90-120), hardness difference (B), and weighted average hardness (Cs) that enable the golf ball to maintain appropriate spin rates for controllability while minimizing kinetic energy loss. These optimized parameters ensure the ball responds adequately to player input for directional control without generating excessive spin that would waste energy.
3Speed
If the compression is increased to achieve high ball speed, then the flight distance is improved, but the spin rate becomes uncontrolled
Solution Approach 1:
The patent specifies an optimal compression range (A: 90-120) and combines it with controlled hardness differences (B) and cover layer hardness characteristics (Cs) to achieve high ball speeds while maintaining controllable spin rates. This multi-parameter approach ensures that the high compression does not lead to uncontrolled spin, but rather to optimized performance within defined boundaries.
4Speed
If the aerodynamic characteristics are optimized for flight distance, then the flight distance is improved, but the spin performance is compromised
Solution Approach 1:
The patent optimizes the core compression (A: 90-120) and hardness distribution (B, Cs) to achieve the right balance between aerodynamic efficiency for flight distance and spin generation for controllability. The specific parameter ranges ensure that the ball maintains appropriate spin characteristics while maximizing flight distance through optimized aerodynamic performance.
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 golf ball achieves a high ball speed with appropriate spin rates, resulting in enhanced flight distance and controllability, while maintaining optimal aerodynamic performance.
Implementation Method 1
The core is formed by crosslinking a rubber composition
Implementation Method 2
The core is formed by crosslinking a rubber composition
Implementation Method 3
The dimples disturb the air flow around the golf ball during flight to cause turbulent flow separation
Implementation Method 4
separation points of the air from the golf ball shift backwards leading to a reduction of drag
Implementation Method 5
The turbulization promotes the displacement between the separation point on the upper side and the separation point on the lower side of the golf ball, which results from the backspin, thereby enhancing the lift force that acts upon the golf ball
Implementation Method 6
backspin due to the loft angle occurs
Implementation Method 7
The golf ball flies with the backspin
Data Source
AI summary
A golf ball has a core, an inner cover, an outer cover, and dimples. The golf ball satisfies the following mathematical formulas.Sa=4500+10(A−0.5B−2Cs)≥40000.04Sa+160−20≤D≤0.04Sa+160+20A: a compression (Atti) of the golfballB: a hardness difference (Shore C) between a surface and a center of the coreCs: (Hi×Ti+2Ho×To)/(Ti+2To)D: a total volume (mm3) of the dimplesHi: a hardness (Shore D) of the inner coverHo: a hardness (Shore D) of the outer coverTi: a thickness (mm) of the inner coverTo: a thickness (mm) of the outer cover