Golf Driver Head Aerodynamic Crown Apex Design
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Solution Overview
Problem
Current golf driver designs fail to efficiently reduce drag forces, limiting head speed and impacting the performance of golf shots due to constraints set by the USGA on design parameters such as volume, dimensions, and inertia.
Innovation Solution
The design incorporates an improved aspect ratio and crown surface features, including a flatter crown with an apex point positioned further away from the face, utilizing the Largest Tangent Circle Method to minimize drag coefficients and projected area, enhancing airflow and reducing drag forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If driver head volume and dimensions are increased to improve inertia and face size, then off-center hit performance is improved, but drag force increases and head speed decreases
Solution Approach 1:
The patent applies parameter changes by optimizing the aspect ratio (depth-to-height ratio) of the driver head to be greater than 0.8, and positioning the crown apex point within a specifically defined zone. These parameter adjustments reduce the projected area and improve airflow characteristics, decreasing drag force while maintaining the required inertia and head volume for stable off-center hits.
Solution Approach 2:
The patent introduces a new dimensional consideration by defining the crown apex point position in three-dimensional space relative to the face and hosel, and by establishing aspect ratio relationships between depth and height. This dimensional approach allows optimization of airflow patterns around the driver head without compromising the fundamental volume and inertia requirements.
2Object-affected harmful factors
If driver head depth is increased to improve aspect ratio and reduce drag, then airflow is improved and head speed increases, but head volume may be reduced
Solution Approach 1:
The patent resolves this contradiction by specifying that the aspect ratio (depth/height) must be greater than 0.8, which allows increased depth for drag reduction while maintaining sufficient volume. The crown apex point positioning requirements further constrain the design to ensure volume is maintained while achieving optimal airflow characteristics.
3Object-affected harmful factors
If crown curvature is reduced to improve airflow and reduce drag, then head speed increases, but manufacturing complexity may increase
Solution Approach 1:
The patent specifies quantitative parameters for the crown apex point position and aspect ratio that provide clear manufacturing targets. While the crown surface requires precise shaping to achieve the apex point positioning, the use of defined zones and measurable parameters simplifies the manufacturing process compared to purely aesthetic crown designs.
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 approach increases head speed by 1 to 3 mph, allowing for higher ball velocities and longer shots by maintaining airflow attachment and reducing turbulence, while maintaining robust face design and inertia values.
Implementation Method 1
reduce the drag force that opposes the driver's travel through the air during its path to the golf ball on the tee
Implementation Method 2
maintaining airflow attachment and reducing turbulence
Implementation Method 3
maintaining airflow attachment and reducing turbulence
Data Source
AI summary
A method of forming a golf club head having improved aerodynamic characteristics. The method comprises a largest tangent circle method utilizing a cartesian coordinate system. The method results in the highest point of the crown surface located within a crown apex zone, wherein this location aids in the improved aerodynamic properties of the golf club head.