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Dynamic Modeling of Parallel Robots for Computed-Torque Control Implementation

Dynamic Modeling of Parallel Robots for Computed-Torque Control Implementation,10.1177/027836499801701205,International Journal of Robotic Research,Al

Dynamic Modeling of Parallel Robots for Computed-Torque Control Implementation   (Citations: 35)
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In recent years, increased interest in parallel robots has been ob served. Their control with modern theory, such as the computed- torque method, has, however, been restrained, essentially due to the difficulty in establishing a simple dynamic model that can be calcu lated in real time. In this paper, a simple method based on the virtual work principle is proposed for modeling parallel robots. The mass matrix of the robot, needed for decoupling control strategies, does not explicitly appear in the formulation; however, it can be computed separately, based on kinetic energy considerations. The method is applied to the DELTA parallel robot, leading to a very efficient model that has been implemented in a real-time computed-torque control algorithm.
Journal: International Journal of Robotic Research - IJRR , vol. 17, no. 12, pp. 1325-1336, 1998
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