Design of a Series Elastic Tendon Actuator Based on Gait Analysis for a Walking Assistance Exosuit
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Exosuits are wearable robots that enhance a person’s muscular strength from outside the body. Many exosuits use tendon actuators with multiple wires that work similarly to human muscles to minimize user unfamil-iarity caused by the discrepancy between the human body’s degree of freedom and the influence of the mass of the exoskeleton. This paper describes the design of a series elastic tendon actuator (SETA) to be used in exosuits. The SETA performs the agonist and antagonist functions of human muscles using two internal wires as well as elastic elements (springs) to measure the human-robot interaction force and overcome differences in variations occurring between the wires. We defined design objectives and selected the main components based on biomechanical gait analysis to design a small SETA. Moreover, we conducted an experiment to verify the basic performance of our SETA design.
KeywordsActuator module design exosuit series elastic actuator walking assistance robot wearable robot
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- H. Y. Jang, Y. H. Ji, J. S. Han, A. M. Khan, J. Y. Ahn, and C. S. Han, “Development and verification of upper extremities wearable robots to aid muscular strength with the optimization of link parameters,” International Journal of Precision Engineering and Manufacturing, vol. 16, no. 12, pp. 2569–2575, 2015.CrossRefGoogle Scholar
- A. T. Asbeck, R. J. Dyer, A. F. Larusson, and C. J. Walsh, “Biologically-inspired Soft Exosuit,” Proc. of IEEE International Conference on Rehabilitation Robotics, pp. 1–8, 2013.Google Scholar
- Y. Ding, I. Galiana, A. Asbeck, B. Quinlivan, S. M. M. De Rossi, and C. J. Walsh, “Multi-joint actuation platform for lower extremity soft exosuits,” Proc. IEEE Int. Conf. Robotics Automation (ICRA), pp. 1327–1334, 2014.Google Scholar
- L. Cappello, D. K. Binh, S. C. Yen, and L. Masia, “Design and preliminary characterization of a soft wearable exoskeleton for upper limb,” Proc. IEEE Int. Conf. on Biomedical Robotics and Biomechatronics (BioRob), pp. 623–630, 2016.Google Scholar
- G. A. Pratt and M. M. Williamson, “Series elastic actuators,” Proc. of IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), pp. 399–406, 1995.Google Scholar
- Size Korea, “The 7th dimension of korean human body, https://doi.org/sizekorea.kr/page/report/1
- W. Kim, H. Lee, D. Kim, J. Han, and C. Han, “Mechanical design of the Hanyang exoskeleton assistive robot (HEXAR),” Proc. of 14th International Conference on Control, Automation and Systems (ICCAS 2014), pp. 479–484, 2014.Google Scholar