Force distribution in manipulation by a robot hand with equality and inequality constraints
Al-Gallaf, E. A. and Warwick, K. (1995) Force distribution in manipulation by a robot hand with equality and inequality constraints. Mechatronics, 5 (5). pp. 561-583. ISSN 0957-4158
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To link to this item DOI: 10.1016/0957-4158(95)00017-Y
The problem of the appropriate distribution of forces among the fingers of a four-fingered robot hand is addressed. The finger-object interactions are modelled as point frictional contacts, hence the system is indeterminate and an optimal solution is required for controlling forces acting on an object. A fast and efficient method for computing the grasping and manipulation forces is presented, where computation has been based on using the true model of the nonlinear frictional cone of contact. Results are compared with previously employed methods of linearizing the cone constraints and minimizing the internal forces.