期刊
IEEE-ASME TRANSACTIONS ON MECHATRONICS
卷 19, 期 4, 页码 1384-1391出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMECH.2013.2281598
关键词
Human-friendly manipulators; safe robots; smart actuators
类别
资金
- Natural Sciences and Engineering Research Council (NSERC) of Canada [RGPIN 346166]
- Ontario Centres of Excellence (OCE) [MR 90545]
This paper presents the design and development of a novel two degrees-of-freedom safe robot manipulator. Magnetorheological clutches are incorporated in the design to enable antagonistic actuation at the joints. A single unidirectional motor supports bidirectional actuation of all joints. Unlike most current safe robots, high-quality actuation is preserved, while the manipulator weight and effective inertia are reduced. This is achieved by relocating the driving motor to the base of the robot. Moreover, magnetorheological clutches have been shown to pose superior torque to mass, and torque to inertia characteristics over conventional servo motors, further contributing to the reduction of manipulator mass and inertia. The manipulator exhibits both high performance and intrinsic safety as a result of mechanically passive dynamics. A set of experiments is performed to validate the manipulator performance.
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