The oscillations of a hand-held tennis racket and a racket with its handle firmly clamped were measured by striking the racket with a ball and observing the output voltage from a thin piezoelectric film wrapped around the handle. The oscillations of the racket in these two cases were quite different, with the hand-held racket displaying vibrational modes similar to those of a completely free racket.
Search Results
You are looking at 1 - 2 of 2 items for
- Author: Howard Brody x
- Refine by Access: All Content x
Howard Brody
The inherent damping of vibrations in most tennis racket frames will only change their playing characteristics slightly. This is because the hand holding the racket damps out the oscillations in about 20 to 30 ms, which is much faster than the frame material itself, which damps the amplitude of the oscillation to half value in 180 to 750 ms, depending upon the racket.
