期刊
IEEE ROBOTICS AND AUTOMATION LETTERS
卷 4, 期 1, 页码 137-144出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LRA.2018.2878353
关键词
Series elastic links; series elastic actuators; force control; physical human-robot interaction; consumer robotics
类别
资金
- Italian Ministry of Education, Universities and Research (MIUR) Dipartimenti di Eccellenza 2018-2022
Robotics has the potential to become a revolutionary technology in the next future and if we want to spread it among the population we must start accounting for affordability in robot research and design. Plastic robots are an emerging example of affordable design where expensive metal structures are replaced by low-cost plastic materials. Plastic materials are not only cost effective but, thanks to their inherent compliance and lightweight, lead to significant advantages in terms of safety and force controllability. Inspired by the idea of series elastic actuator (SEA) this letter introduces the new concept of series elastic link (SEL), which exploits the inherent flexibility of plastic links to implement series compliance. This letter elaborates on the concept of SEL and highlights a parallelism with SEAs. Then, focusing on a single-DOF setup it shows that, beyond their economic advantage, SELs lead to enhanced safety and more accurate force control with respect to traditional SEA implementations. The proposed argumentations are theoretically supported and experimentally validated.
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