Analysis of Golf Impact Phenomenon and Ball Trajectory

doi:10.1299/JSMEC.41.822

Paper

Analysis of Golf Impact Phenomenon and Ball Trajectory

Published Dec 15, 1998 · T. Iwatsubo, S. Kawamura, K. Miyamoto

Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing

UNKNOWN SJR score

6

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0

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Abstract

The effects of the several factors, namely, the friction coefficient between the golf ball and club head, the eccentric hitting, the inclination of the head and the shape of surface, on the release velocity, the spin velocity and the distance and direction of the flying ball after impact, are investigated. A computer program that analyzes the dynamic contact problem with friction is developed and the impact phenomenon between the head and ball is numerically analyzed using this program. The effects of the factors described above are investigated quantitatively. it is shown that back spin is the result of friction between the head and ball, and side spin is the result of eccentric hitting or inclination of the head, which is called the gear action. In addition, it is shown that the shape of surface influences the trajectory of the ball after impact, which is called the round effect.

Study Snapshot

The friction coefficient between golf ball and club head, eccentric hitting, inclination of the head, and surface shape influence the release velocity, spin velocity, and distance and direction of the flying ball after impact.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Analysis of Golf Impact Phenomenon and Ball Trajectory

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References

Optimum design of a golf club head.

The optimal combination of golf club and golf ball, using mechanical impedance, provides the maximum restitution coefficient and impact transfer efficiency, based on time series analysis and frequency domain analysis.

Research on optimum design of a golf club.

Optimum golf club design can be achieved by tuning the shaft stiffness, with beginners needing more flexibility than advanced players.

Citations

A Golf Head CAD/KBE Optimization Design System

This study developed a knowledge-based CAD/KBE system for optimal design of golf heads, integrating KBE technology into a CAD system to achieve knowledge driven automation.

Assessment of head injury of children due to golf ball impact

Children are more prone to head injuries from flying golf balls in the frontal and side/temporal areas, based on numerical simulations.

Numerical analysis of golf club head and ball at various impact points

The larger the moment of inertia Izz or shallower the center of gravity, the less side spin rate caused, and the larger the uniform restitution area, improving golf club performance.

A Study of Impact Force on Modern Soccer Balls

Jabulani soccer ball has the highest impulsive force at each tested speed, possibly due to its machine-stitched inner layer being stiffer than Cafusa's strips of cloth.

유한요소법에 의한 골프 공의 충격 시 스핀 메커니즘 해석 = Analysis of golf ball spin mechanism at impact by FEM

Negative tangential force plays a crucial role in creating ball spin at impact, which can be improved to enhance golf ball flight distance.