A prototype of a novel energy efficient variable stiffness actuator.

Department of Electrical Engineering, Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente, 7500 AE Enschede, The Netherlands.
Conference proceedings: ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 01/2010; 2010:3703-6. DOI: 10.1109/IEMBS.2010.5627424
Source: IEEE Xplore

ABSTRACT In this work, we present a proof of concept of a novel variable stiffness actuator. The actuator design is based on the conceptual design proposed in earlier work, and is such that the apparent output stiffness of the actuator can be changed independently of the output position and without any energy cost. Experimental results show that the behavior of the prototype is in accordance with the theoretical results of the conceptual design, and thus show that energy efficient variable stiffness actuators can be realized.

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