抄録
The purpose of this study was to examine the influence of the rolling angular velocity of the bat on batted ball characteristics. In order to construct the model of the bat and ball and to simulate of the ball-bat impact phenomenon, numerical analysis programs based on the three-dimensional finite element method was used. In this study, to focus on the rolling angular velocity of the bat, the simulation was conducted at a constant pitched condition. The rolling angular velocity of the bat was set at 200,1000,1800 [°/s] based on 22 sets of actual measurements taken during a "free batting practice" performed by the member of a collegiate baseball team. The results showed that as the rolling angular velocity of the bat is increased, maximum flight distance does not change, whereas maximum kinetic energy is slightly increased.
