A study of foot strike phenomenon for piped walking machine

Biped walking has been regarded as a promising locomotion applicable to medical, nursing and home-service robots. However, the influences of foot strike have not been widely discussed. In this paper, we present the experimental result about the collision between the tip of a 2-link system and the floor. We compare the result with computer simulation. These considerations are used to improve the walking stability and energy efficiency with our actual biped machine.