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Dual-Space Adaptive Control of Redundantly Actuated Cable-Driven Parallel Robots

Johann Lamaury 1 Marc Gouttefarde 1 Ahmed Chemori 1 Pierre-Elie Hervé 1 
1 DEXTER - Robotique médicale et mécanismes parallèles
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : Cable-driven parallel robots (CDPR) are efficient manipulators able to carry heavy payloads across large workspaces. Therefore, the dynamic parameters such as the mobile platform mass and center of mass location may considerably vary. Without any adaption, the erroneous parametric estimate results in mismatch terms added to the closed-loop system, which may decrease the robot performances. In this paper, we introduce an adaptive dual-space motion control scheme for CDPR. The proposed method aims at increasing the robot tracking performances, while keeping all the cable tensed despite uncertainties and changes in the robot dynamic parameters. Reel-time experimental tests, performed on a large redundantly actuated CDPR prototype, validate the efficiency of the proposed control scheme. These results are compared to those obtained with a non-adaptive dual-space feedforward control scheme.
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Submitted on : Wednesday, October 28, 2015 - 12:34:58 AM
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Johann Lamaury, Marc Gouttefarde, Ahmed Chemori, Pierre-Elie Hervé. Dual-Space Adaptive Control of Redundantly Actuated Cable-Driven Parallel Robots. IROS: Intelligent RObots and Systems, Nov 2013, Tokyo, Japan. pp.4879-4886, ⟨10.1109/IROS.2013.6697060⟩. ⟨lirmm-01221399⟩



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