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Adaptive and Resilient Soft Tensegrity Robots

John Rieffel 1 Jean-Baptiste Mouret 2 
2 LARSEN - Lifelong Autonomy and interaction skills for Robots in a Sensing ENvironment
Inria Nancy - Grand Est, LORIA - AIS - Department of Complex Systems, Artificial Intelligence & Robotics
Abstract : Living organisms intertwine soft (e.g., muscle) and hard (e.g., bones) materials, giving them an intrinsic flexibility and resiliency often lacking in conventional rigid robots. The emerging field of soft robotics seeks to harness these same properties to create resilient machines. The nature of soft materials, however, presents considerable challenges to aspects of design, construction, and control—and up until now, the vast majority of gaits for soft robots have been hand-designed through empirical trial-and-error. This article describes an easy-to-assemble tensegrity-based soft robot capable of highly dynamic locomotive gaits and demonstrating structural and behavioral resilience in the face of physical damage. Enabling this is the use of a machine learning algorithm able to discover effective gaits with a minimal number of physical trials. These results lend further credence to soft-robotic approaches that seek to harness the interaction of complex material dynamics to generate a wealth of dynamical behaviors.
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Submitted on : Sunday, May 27, 2018 - 11:08:03 PM
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John Rieffel, Jean-Baptiste Mouret. Adaptive and Resilient Soft Tensegrity Robots. Soft Robotics, 2018, 5 (3), pp.318-329. ⟨10.1089/soro.2017.0066⟩. ⟨hal-01800749⟩



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