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    • 9. 发明授权
    • Golf ball
    • 高尔夫球
    • US09010177B2
    • 2015-04-21
    • US13455614
    • 2012-04-25
    • Hyoungchol KimKaname YamadaMasahide Onuki
    • Hyoungchol KimKaname YamadaMasahide Onuki
    • G01M1/00A63B37/00A63B47/00
    • A63B37/0004A63B37/0006A63B37/0012A63B47/008
    • On the basis of a surface shape appearing at a predetermined point moment by moment during rotation of a golf ball having numerous dimples on its surface, a data constellation regarding a parameter dependent on a surface shape of the golf ball is calculated. A preferable parameter is a distance between an axis of the rotation and the surface of the golf ball. Another preferable parameter is a volume of space between a surface of a phantom sphere and the surface of the golf ball. Fourier transformation is performed on the data constellation to obtain a transformed data constellation. On the basis of a peak value and an order of a maximum peak of the transformed data constellation, an aerodynamic characteristic of the golf ball is determined. The peak value and the order of the maximum peak are calculated for each of PH rotation and POP rotation.
    • 基于在其表面上具有多个凹坑的高尔夫球的旋转期间出现在预定点时刻的表面形状,计算关于取决于高尔夫球的表面形状的参数的数据星座。 优选的参数是旋转轴线和高尔夫球表面之间的距离。 另一个优选的参数是幻影球体的表面和高尔夫球表面之间的空间体积。 对数据星座执行傅立叶变换以获得变换数据星座。 基于变换数据星座的峰值和最大峰值的阶数,确定高尔夫球的空气动力特性。 每个PH旋转和POP旋转计算峰值和最大峰值的顺序。