Abstract
The contact force and the required friction coefficient were tested when people walking on motion platform with different accelerations by gait friction tester, forces acting on the body in different gait phase were analyzed, and the effect of the platform acceleration on mechanical principle of slipping was discussed. The results showed that the peak value of the required coefficient of friction (RCOF1) in landing phase increased with increasing of platform acceleration when people walking on accelerated motion platform, which was easy to slip; The peak value of the required coefficient of friction (RCOF2) in taking off phase decreased with larger acceleration, and the slipping tendency decreased. The required coefficient of friction could be decreased by adjusting the gait parameters and the motion of the body gravity center to reduce the possibility of slipping.
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