回転時のバレーボール特性から導く戦術提案

抄録

In recent ball games, fluid analysis of balls has become indispensable in terms of improving the quality of competition. Since the effect of rotation differs depending on the ball, the magnitude of the change changes even with the same drive rotation and the same rotation speed. Therefore, in volleyball, the tactics differ depending on the characteristics of the ball. The flight trajectory was measured in order to understand the aerodynamic characteristics of the ball during rotation and to propose the ideal serve method and ideal toss. In the actual striking experiment, ball ejection test was performed at a speed of 84 km / h, the rotation speed was measured with a high-speed camera, and the trajectory was analyzed with a dartfish. I was able to grasp the characteristics of the ball during rotation. In order to propose an ideal toss, we verified the trajectory during backspin and no rotation using an injection machine. From the actual hitting experiment, we were able to grasp the characteristics of the ball during rotation and expand the range of tactics in volleyball competition.