The paper
discusses some practical problems of contact dynamics. Modelling the dynamics
of contact tasks is carried out in a completely general
way. Two dynamic systems, active robot system and passive environment
system are brought into contact and the relevant dynamics are
analyzed. The effects are: rigid-body contact force, elastodynamics in contact
zone, friction in contact points, etc. Simultaneous stabilization of contact
force and position is obtained using New Dynamic Position/Force Control.
The general model is then applied to some more concrete
problems and the simulation results are presented.