Outputs (17)

Independent force and position control for cooperating manipulators handling an unknown object and interacting with an unknown environment (2016)
Journal Article
Ryu, J. H., Jafari, A., & Jee-Hwan, R. (2016). Independent force and position control for cooperating manipulators handling an unknown object and interacting with an unknown environment. Journal of The Franklin Institute, 353(4), 857-875. https://doi.org/10.1016/j.jfranklin.2015.12.010

© 2016 The Franklin Institute. Published by Elsevier Ltd. All rights reserved. This paper presents a unified framework for system design and control in cooperative robotic systems. It introduces a highly generalized cooperative system configuration t... Read More about Independent force and position control for cooperating manipulators handling an unknown object and interacting with an unknown environment.

Increasing the impedance range of admittance-type haptic interfaces by using Time Domain Passivity Approach (2015)
Journal Article
Hwang, J. H., Nabeel, M., Lee, J., Mehmood, U., Jafari, A., & Ryu, J. H. (2015). Increasing the impedance range of admittance-type haptic interfaces by using Time Domain Passivity Approach. Proceedings of the ... IEEE/RSJ International Conference on Intelligent Robots and Systems. IEEE/RSJ International Conference on Intelligent Robots and Systems, 2015-December, 585-590. https://doi.org/10.1109/IROS.2015.7353431

© 2015 IEEE. This paper proposes a method to increase the impedance range of admittance-type haptic interfaces. Admittance-type haptic interfaces are used in various applications that typically require interaction with high impedance virtual environm... Read More about Increasing the impedance range of admittance-type haptic interfaces by using Time Domain Passivity Approach.

Stable admittance type haptic interaction based on time domain passivity approach (2015)
Journal Article
Jafari, A., Totorkulov, K., & Ryu, J. (2015). Stable admittance type haptic interaction based on time domain passivity approach

In this paper, we propose a stable and high transparent admittance haptic display even in free space haptic rendering. Because considering admittance haptic rendering as a one-port network is not enough to detect the active energy, new representation... Read More about Stable admittance type haptic interaction based on time domain passivity approach.

Input-to-state stable approach to release the conservatism of passivity-based stable haptic interaction (2015)
Journal Article
Jafari, A., & Ryu, J. H. (2015). Input-to-state stable approach to release the conservatism of passivity-based stable haptic interaction. IEEE International Conference on Robotics and Automation, 2015-June(June), 285-290. https://doi.org/10.1109/ICRA.2015.7139013

© 2015 IEEE. Passivity has been a major criterion on designing a stable haptic interface due to many advantages. However, passivity has been suffering from its intrinsic conservatism since it only represents a small set of the whole stable region. Th... Read More about Input-to-state stable approach to release the conservatism of passivity-based stable haptic interaction.

6-DOF extension of memory-based passivation approach for stable haptic interaction (2014)
Journal Article
Jafari, A., & Ryu, J. H. (2015). 6-DOF extension of memory-based passivation approach for stable haptic interaction. Intelligent Service Robotics, 8(1), 23-34. https://doi.org/10.1007/s11370-014-0161-y

© 2014, Springer-Verlag Berlin Heidelberg. This paper extends previously proposed memory-based passivity approach (MBPA) to 6 degrees-of-freedom (DOF) haptic interactions. By introducing 6-DOF virtual proxy and virtual object, connected with haptic i... Read More about 6-DOF extension of memory-based passivation approach for stable haptic interaction.

Hybrid force-motion control of coordinated robots interacting with unknown environments (2014)
Journal Article
Jafari, A., & Ryu, J. H. (2014). Hybrid force-motion control of coordinated robots interacting with unknown environments. https://doi.org/10.1109/ICCAS.2014.6987966

© 2014 Institute of Control, Robotics and Systems (ICROS). This paper presents a unified framework for system design and control in cooperative robotic systems. It introduces a highly general cooperative system configuration involving any number of m... Read More about Hybrid force-motion control of coordinated robots interacting with unknown environments.

Transparency improved sliding-mode control design for bilateral teleoperation systems by using virtual manipulator concept (2013)
Journal Article
Jafari, A., & Ryu, J. H. (2013). Transparency improved sliding-mode control design for bilateral teleoperation systems by using virtual manipulator concept. IFAC-PapersOnLine, 3(PART 1), 21-26. https://doi.org/10.3182/20131111-3-KR-2043.00013

This paper proposes a new methodology for designing sliding mode bilateral controllers based virtual manipulator concept that aims to reach the most transparency considering parameter uncertainties and disturbances. This method shows a modified schem... Read More about Transparency improved sliding-mode control design for bilateral teleoperation systems by using virtual manipulator concept.