Simulation and Analysis of Table Tennis Considering Spin Angular Speed Damping

摘要

It is very complicated to analyze the force and moment as well as the kinematics modeling of table tennis ball in the process of ball hitting, especially with high returning speed. In the course of flight, the rotation speed of the ball is attenuated by the effect of air resistance. In this paper, the angular speed damping model is established for the first time in consideration of the factors that the spin angular speed attenuates in the flight process, and the estimation method of the decay time constant is proposed in this paper. Through the analysis of the force and moment in the process of returning the ball, contact-table rebound, the kinematics and dynamics modeling of the whole process of free-flying, contact-table rebound, hitting ball and second rebound after across the net is established. The trajectory of flying ball is simulated by means of computer simulation, considering the factors of different angles of swing, different strength of friction, as well as the different rotation generated by the different friction acting time on ball. The results can provide theoretical support for the training of table tennis players and the design of table tennis robot.