ABSTRACT

We describe models and algorithms designed to pro­ duce efficient and physically consistent dynamic sim­ ulations. These models and algorithms have been im­ plemented within the Robot# system[13] which can po­ tentially be configured for a large variety of intervention-style tasks such as dextrous manipulations with a robot hand; manipulation of non-rigid objects; tele­ programming of the motions of an all-terrain vehicle; and some robot assisted surgery tasks (e.g. positioning of an artificial ligament in knee surgery). The approach uses a novel physically based modeling technique to pro­ duce dynamic simulations which are both efficient and consistent according to the laws of the Physics. The main advances over previous works in Robotics and Computer Graphics fields are twofold: the development of a unique framework for simultaneously processing motions, deformations, and physical interactions; and the incorporation of appropriate models and algorithms for obtaining efficient processing times while insuring consistent physical behaviors.