TY - CONF T1 - Design of an Under-Actuated Wrist Based on Adaptive Synergies T2 - IEEE International Conference of Robotics and Automation, ICRA2017 Y1 - 2017 A1 - S. Casini A1 - V. Tincani A1 - G. Averta A1 - M. Poggiani A1 - C. Della Santina A1 - E. Battaglia A1 - M. G. Catalano A1 - M. Bianchi A1 - G. Grioli A1 - A. Bicchi KW - Haptics KW - Robotics AB -

An effective robotic wrist represents a key enabling element in robotic manipulation, especially in prosthetics. In this paper, we propose an under-actuated wrist system, which is also adaptable and allows to implement different under-actuation schemes. Our approach leverages upon the idea of soft synergies - in particular the design method of adaptive synergies - as it derives from the field of robot hand design. First we introduce the design principle and its implementation and function in a configurable test bench prototype, which can be used to demonstrate the feasibility of our idea. Furthermore, we report on results from preliminary experiments with humans, aiming to identify the most probable wrist pose during the pre-grasp phase in activities of daily living. Based on these outcomes, we calibrate our wrist prototype accordingly and demonstrate its effectiveness to accomplish grasping and manipulation tasks.

JF - IEEE International Conference of Robotics and Automation, ICRA2017 PB - IEEE CY - Singapore, 29 May-3 June 2017 UR - http://ieeexplore.ieee.org/document/7989789/ ER -