クラブヘッドの特性がゴルフボールの飛び出し速度及びスピン量に及ぼす影響の解析

概要

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In this paper, the effects of the physical characteristics of a golf club head are investigated on its performance in order to develop a superior club head. Here the physical characteristics are the magnitude of the moment of inertia and the depth the center of gravity. And the performances are the release velocity, the spin rate of the ball and the size of the uniform velocity ratio. In the numerical analysis, several kinds of club head are modeled with different moment of inertia and depth of the center of gravity. For every club head model, the ball is hit from various impact points, and the release velocity, the spin rate and the size of the uniform velocity ratio are calculated. The results are as follows. When the moment of inertia increases, the spin rate decreases and the release velocity increases. The size of the uniform velocity ratio also increases. When the moment of inertia about the horizontal axis or the one about the vertical axis increases, the width in vertical direction or the one in horizontal direction increases, respectively. When the ball hits at the heel side or toe side, the bigger the depth of the center of gravity is, the bigger the spin rate is. The sensitivities of the physical characteristics of club head on the performance, also, can be obtained.
2000-11-25