Six-DOF Impedance Control of Dual-Arm Cooperative Manipulators. Caccavale, F, Chiacchio, P., Marino, A, & Villani, L IEEE/ASME TRANSACTIONS ON MECHATRONICS, 13(5):576–586, 2008. doi abstract bibtex In this paper, the problem of impedance control of dual-arm cooperative manipulators is studied. A general impedance control scheme is adopted, which encompasses a centralized impedance control strategy, aimed at conferring a compliant behavior at the object level, and a decentralized impedance control, enforced at the end-effector level, aimed at avoiding large internal loading of the object. Remarkably, the mechanical impedance behavior is defined in terms of geometrically consistent stiffness. The overall control scheme is based on a two-loop arrangement, where a simple proportional integral derivative inner motion loop is adopted for each manipulator, while an outer loop, using force and moment measurements at the robots wrists, is aimed at imposing the desired impedance behaviors. The developed control scheme is experimentally tested on a dual-arm setup composed of two 6-DOF industrial manipulators carrying a common object. The experimental investigation concerns the four different controller configurations that can be achieved by activating/deactivating the single impedance controllers.
@article{
11580_71236,
author = {Caccavale, F and Chiacchio, P. and Marino, A and Villani, L},
title = {Six-DOF Impedance Control of Dual-Arm Cooperative Manipulators},
year = {2008},
journal = {IEEE/ASME TRANSACTIONS ON MECHATRONICS},
volume = {13},
abstract = {In this paper, the problem of impedance control of dual-arm cooperative manipulators is studied. A general impedance control scheme is adopted, which encompasses a centralized impedance control strategy, aimed at conferring a compliant behavior at the object level, and a decentralized impedance control, enforced at the end-effector level, aimed at avoiding large internal loading of the object. Remarkably, the mechanical impedance behavior is defined in terms of geometrically consistent stiffness. The overall control scheme is based on a two-loop arrangement, where a simple proportional integral derivative inner motion loop is adopted for each manipulator, while an outer loop, using force and moment measurements at the robots wrists, is aimed at imposing the desired impedance behaviors. The developed control scheme is experimentally tested on a dual-arm setup composed of two 6-DOF industrial manipulators carrying a common object. The experimental investigation concerns the four different controller configurations that can be achieved by activating/deactivating the single impedance controllers.},
keywords = {Control; cooperative manipulators; robotics},
doi = {10.1109/TMECH.2008.2002816},
pages = {576--586},
number = {5}
}
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