నైరూప్య

Tennis movement trajectory and drop point anticipation analytical research based on biomechanical modelc

Pingjing He

In tennis, every stroke cannot do without anticipating oncoming ball, moving pace, meeting the ball, fast returning these four basic segments, while in the four segments, anticipate oncoming ball is the first and also the most important segment, especially for oncoming ball drop point prediction and judgment, it would be particularly important. It carries out prediction after getting tennis one point three dimensional coordinate and speed vector, applies physics projectile and turbulence flow method, establishes corresponding model. In ideal case that ignores air resistance and flow resistance, it adopts projectile model solving tennis drop point issue that considers tennis rotation with Bernoulli’s principle, using consulted turbulence flow knowledge, establishes corresponding mechanical model, and utilizes mathematical differential equation knowledge to make prediction on tennis drop point.