Grasp stability and feasibility for an arm with an articulated hand

A system for generating a stable, feasible grasp of a polyhedral object is presented. A set of contact points on the object that can result in a stable grasp is found, and a feasible grasp in which the robot contacts the object at those contact points is determined. The algorithm is designed for the Salisbury hand mounted on a Puma 560 arm, but a similar approach could be used to develop grasping systems for other robots. Simulations show that the system can generate a wide range of grasps in difficult situations.<
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