IoTボールによる硬式野球ボールの投球軌道とシミュレーション

抄録

Recent research on baseballs has revealed that the pitching trajectory varies with speed, number of rotations, degree of rotational axis and seam shape on the ball surface. Therefore, a pitching experiment was conducted to clarify the effects of ball inclination, velocity and number of rotations on the ball's trajectory. The pitching experiment was conducted by 12 pitchers from the university's baseball club.IoT balls were used to measure speed, number of revolutions and ball tilt.Pitchi a ball was used to capture images of the ball with a high-speed camera. The coefficient of lift and coefficient of drag during pitching were also measured by hydrodynamic force experiments. In the hydrodynamic force experiment, measurements of one-seam, two-seam and four-seam were carried out to check the differences between the seams. The results showed that the pitching trajectory changed laterally depending on the degree of rotation axis. Furthermore, changes in the coefficient of lift and coefficient of drag for 1-seam, 2-seam and 4-seam balls were found to vary with the degree of rotation.