テニスにおけるシミュレーションとラケット性能の予測(<小特集>「スポーツ工学におけるシミュレーション」)

概要

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At the current stage, the terms used in describing the performance of a tennis racket are based on the feel of an experienced tester or a player. However, the optimum racket depends on the physical and technical levels of each user. Accordingly, there are many unknowns regarding the relationship between the performance estimated by a player and the physical properties of a tennis racket. This paper predicts racket performance in terms of the coefficient of restitution, the rebound power coefficient, and the post-impact ball velocity relevant to the power of the racket. It also predicts racket performance in terms of the impact shock vibrations of player's wrist joint, which might be related to the feel or comfort. It is based on the experimental identification of the racket-arm dynamics and the simple nonlinear impact analysis, clarifying the mechanism of a difference in performance between the rackets.
2003-03-15