Comparison of Controllable Transmission Ratio Type Variable Stiffness Actuator with Antagonistic and Pre-tension Type Actuators for the Joints Exoskeleton Robots

Hasbi Kizilhan, Ozgur Baser, Ergin Kilic, Necati Ulusoy

2015

Abstract

Exoskeleton robots are used as assistive limbs for elderly persons, rehabilitation for paralyzed persons or power augmentation purposes for healthy persons. The similarity of the exoskeleton robots and human body neuro-muscular system maximizes the device performance. Human body neuro-muscular system provides a flexible and safe movement capability with minimum energy consumption by varying the stiffness of the human joints regularly. Similar to human body, variable stiffness actuators should be used to provide a flexible and safe movement capability in exoskeletons. In the present day, different types of variable stiffness actuator designs are used, and the studies on these actuators are still continuing rapidly. As exoskeleton robots are mobile devices working with the equipment such as batteries, the motors used in the design are expected to have minimal power requirements. In this study, antagonistic, pre-tension and controllable transmission ratio type variable stiffness actuators are compared in terms of energy efficiency and power requirement at an optimal (medium) walking speed for ankle joint. In the case of variable stiffness, the results show that the controllable transmission ratio type actuator compared with the antagonistic design is more efficient in terms of energy consumption and power requirement.

Paper Citation

in Harvard Style

Kizilhan H., Baser O., Kilic E. and Ulusoy N. (2015). Comparison of Controllable Transmission Ratio Type Variable Stiffness Actuator with Antagonistic and Pre-tension Type Actuators for the Joints Exoskeleton Robots . In Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO, ISBN 978-989-758-123-6, pages 188-195. DOI: 10.5220/0005507801880195

in Bibtex Style

@conference{icinco15,
author={Hasbi Kizilhan and Ozgur Baser and Ergin Kilic and Necati Ulusoy},
title={Comparison of Controllable Transmission Ratio Type Variable Stiffness Actuator with Antagonistic and Pre-tension Type Actuators for the Joints Exoskeleton Robots},
booktitle={Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO,},
year={2015},
pages={188-195},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005507801880195},
isbn={978-989-758-123-6},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO,
TI - Comparison of Controllable Transmission Ratio Type Variable Stiffness Actuator with Antagonistic and Pre-tension Type Actuators for the Joints Exoskeleton Robots
SN - 978-989-758-123-6
AU - Kizilhan H.
AU - Baser O.
AU - Kilic E.
AU - Ulusoy N.
PY - 2015
SP - 188
EP - 195
DO - 10.5220/0005507801880195