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Compares nonlinear control methods for a flexible joint manipulator, suggesting effective solutions for enhanced performance.
In this paper we study the nonlinear control problem for a single link manipulator with joint elasticity. We illustrate several recent nonlinear control techniques, namely feedback linearization, integral manifold and composite control. We work out in detail both a global feedback linearizing control law and a nonlinear composite control law based on a singular perturbation formulation of the manipulator dynamics and the concept of integral manifold. The two solutions are then compared and contrasted.
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Marino et al. (1986) studied this question.
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