Biomechanics of conjugated materials in tennis racket swing action
Abstract
In response to the problem of insufficient elasticity and high swing load in tennis rackets, this article adopted a new π conjugated material to optimize the tennis racket and conducted research on the biomechanical analysis of swing actions. Firstly, the Hummer method was used to oxidize and dry graphite to prepare graphene materials with low dispersion. Poly1, 5-diaminoanthraquinone (PDAA) nanocomposites were introduced, and they were fused with graphene materials through chemical oxidation polymerization to produce a new π conjugated material. Then, they were applied to the string surface and handshake improvement of tennis rackets through impregnation and vacuum drying methods, improving the elasticity of the strings while reducing the weight of the tennis racket. Finally, on-site material validation was conducted on the self built survey athlete dataset. The experimental results showed that the accuracy of the tennis racket made of the new π conjugated material reached 99.41%, which was 6.73% higher than that of carbon fiber material. The bending strength reached 97.53 MPa, and the weight of the racket was only 255 g. The application of conjugated materials has enhanced the elasticity of tennis rackets, reduced the weight of the racket, and promoted the fatigue resistance and accuracy of tennis players’ swing actions.
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