Abstract
In order to exert a large force on the environment beyond the limitation of actuators, it is effective to apply impulsive force. We describe the motions that perform tasks by applying impulsive force as "impact motion." In this research, a nailing task is taken as an example of impact motion. To drive a nail skillfully, it is imperative to exert large force to a target point with precision. This paper presents evaluation of optimized motion based on virtual mass dynamics model. In order to evaluate the motion, experiments are carried out using a life-sized humanoid robot HRP-2. The position accuracy of the top head, validity of the contact dynamics model and effect of impulsive force on stability are discussed.
