Optimum condition to achieve table tennis straight-racket-hit skill from analysis of humanoid arm model

Based on human arm and serial robot theory, a model is established to get the acceleration and velocity performance index of the humanoid-arm mechanism. Using these indices, the dynamic performance of the mechanism is analyzed and the atlas of the indices contoured by Matlab is given. Through analyzing the results of simulating atlas, the optimum size of the humanoid-arm is derived. Using a group of arm length sampled from children, the optimum length of human arms to perform the straight-racket-hit skill of table tennis is derived.