Abstract
The end-point stiffness of a robot kinematic chain represents the crucial problem in force control. Within the period of the force generation, regardless of the drive type, due to inherent torque feedback the oscillations of the controlled force appear. For technologies with the constant contact force generation, the paper presents an effective linear control structure taking the physical limitation of the system’s inner variables into account. A numerical model of one degree of freedom verifies the proposed control algorithm.
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