1992 Volume 58 Issue 551 Pages 2165-2170
The authors and others have previously clarified the mechanisms of the impact phenomena of a club head and a golf ball using a finite-degrees-of-freedom model. In this paper, the mechanisms of the impact phenomena in tennis are clarified for purposes of the optimum design of the tennis racket, in terms of the natural frequency calculated by the frequency domain analysis. A simple beam model is used for the frame, and mass-spring models are adopted for the gut and ball. The influences of the frame and gut, which have different mass and stiffness, on the repulsive velocity of the ball are investigated.