ArticleOriginal scientific text
Title
Saturating stiffness control of robot manipulators with bounded inputs
Authors 1, 2, 2, 3
Affiliations
- CONACYT—Ensenada Institute of Technology, Boulevard Tecnológico No. 150, Col. Ex Ejido Chapultepec, Ensenada, Baja California, 22780 Mexico
- Faculty of Sciences, Autonomous University of San Luis Potosí, Av. Salvador Nava S/N, San Luis Potosí, SLP, 78290 Mexico
- Robotics Engineering Department, Autonomous University of Aguascalientes, Prol. Mahatma Gandhi 6601, Aguascalientes, Ags., 20392 Mexico
Abstract
A saturating stiffness control scheme for robot manipulators with bounded torque inputs is proposed. The control law is assumed to be a PD-type controller, and the corresponding Lyapunov stability analysis of the closed-loop equilibrium point is presented. The interaction between the robot manipulator and the environment is modeled as spring-like contact forces. The proper behavior of the closed-loop system is validated using a three degree-of-freedom robotic arm.
Keywords
bounded inputs, robot manipulator, saturation, stiffness control
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Additional information
PL: Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).