Does adding weighted tape effect tennis racket vibration and shock?

Abstract Tennis racket frame customization is common practice amongst players. One such method of customization is added weighted tape to certain locations on the frame. This is often done to fine-tune the moments of inertia and balance point of a racket to a players preference. The effect of weighted tape on vibrotactile response at the handle remains underexplored. This study examines the effect of adding varying amounts of mass (5, 10, 20 g) to four rackets (of differing initial balance points) in three configurations—sides, top, both. Experimental modal analysis was conducted on each configuration to examine the effect on the vibration response at the handle. The position of the node line and line of minimum Shock Ratio shifted up the stringbed with added mass at the top. The extent of upward shift was dependent on the initial balance point of the racket with head heavy rackets experiencing a more substantial upward shift. There were few observable differences in the other configurations. With any added mass an increase in Sweet Area (location wherein Shock Ratio is less than one) was observed. The additional area was most often at laterally off-center locations near the edge of the stringbed, not favorable for impact. The results of this study reflect the need for more nuanced advice for tennis players regarding the utility and effectiveness of weighted tape customizations.