Other Publications
Selected and Recent Publications
N.G.Tsagarakis and D.G.Caldwell, “A Haptic System for Aiding the Weak Upper Limb Motion during Mouse based Interaction”, IEEE Transactions on Systems Man and Cybernetics (accepted)
Matteo Laffranchi, N.G.Tsagarakis and Darwin G. Caldwell , “The role of Physical Damping in Compliant Robotic Joints”, IEEE Transactions Mechatronics (accepted)
Amir Jafari, N.G.Tsagarakis and Darwin G. Caldwell , “A Novel Intrinsically Energy Efficient Development of a Novel Actuator with Adjustable Stiffness (AwAS)”, IEEE Transactions on Mechatronics (accepted).
Barkan Ugurlu, Jody Saglia, N.G. Tsagarakis, D.G. Caldwell, “Hopping at the Resonance Frequency: A Pattern Generation Technique for Bipedal Robots with Elastic Joints”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (accepted).
Ioannis Sarakoglou, N.G. Tsagarakis, D.G. Caldwell, “A Compact Tactile Display Suitable for Integration in VR and Teleoperation”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (accepted).
A. Jafari, N.G. Tsagarakis, I. Sardellitti, D.G. Caldwell, “How Design can affect the Energy Required to Regulate the Stiffness in Variable Stiffness Actuators”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (accepted).
A. Ajoudani, N.G.Tsagarakis, A. Bicchi, “Tele-Impedance: Towards Transferring Human Impedance Regulation Skills to Robots”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (Best Manipulation Paper Finalist).
I. Sardellitti, G.M. Cerda, N.G.Tsagarakis, A. Jafari, D.G. Caldwell, “A Position and Stiffness Control Strategy for Variable Stiffness Actuators”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (accepted).
M. Catalano, G. Grioli, Manolo Garabini, Felipe Weilemann Belo, Andrea di Basco, N.G. Tsagarakis, A. Bicchi, “Implementing a Variable Impedance Actuator”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (accepted).
F.L. Moro, N.G.Tsagarakis, D.G.Caldwell,“Efficient Human-Like Walking for the COmpliant huMANoid COMAN based on Kinematic Motion Primitives”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (accepted).
Zhibin Li, N.G.Tsagarakis, D.G.Caldwell, “Walking Trajectory Generation for a Humanoid Robot with Compliant Joints”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (accepted).
Zhibin Li, Bram Vanderborght, N.G.Tsagarakis, D.G.Caldwell, “Compliant Humanoid Stabilization under Impact Disturbances Using Passive Structures and Active Compliance Control”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2012), St Paul, Minnesota (accepted).
Bram Vanderborght, N.G Tsagarakis, Ronald Van Ham, Ivar Thorson; Darwin Caldwell, “MACCEPA 2.0: Compliant Actuator used for Energy Efficient Hopping Robot Chobino1D”, Autonomous Robots , Volume 31, Number 1, 55-65, 2011
N.G.Tsagarakis, D.G.Caldwell, “Towards Improved Mouse Interaction for Users with Impaired Upper Limb gross Coordination”, Journal of Applied Bionics and Biomechanics: Special Issue on Assistive and Rehabilitation Robotics, Volume 8, Number 1, 2011, pp 13-20.
Claudio Semini, N. G. Tsagarakis, Emmanuelle Guglielmino, Ferdinando Cannella, Darwin G. Caldwell, “Design of HyQ - a Hydraulically and Electrically Actuated Quadruped Robot”, IMechE Vol. 225 Part I: Journal of Systems and Control Engineering, 2011.
V. A. Tsachouridis, N. G. Tsagarakis and D. G. Caldwell, “Sampled Data Control of a Compliant Actuated Joint Using On/Off Solenoid Valves”, Journal of Engineering Science and Technology Review 4 (1), pp.14-24, 2011.
N. G. Hernandez, N.G. Tsagarakis and D.G.Caldwell, “Feeling through Tactile Displays: A Study on the Effect of the Array Density and Size on the Discrimination of Tactile Patterns”, IEEE Transactions on Haptics, vol. 4, 2010.
Angelo Emanuele Fiorilla, N.G.Tsagarakis, Francesco Nori and Giulio Sandini, “Design of a 2-Finger Hand Exoskeleton for Finger stiffness measurements”, Journal of Applied Bionics and Biomechanics:Special Issue on "Upper and Lower Limb Exoskeletons, Vol. 6, No. 2, pp 217–228, June 2009.
J. A. Saglia, N.G.Tsagarakis, J. S. Dai and D. G. Caldwell, “A High Performance Redundantly Actuated Parallel Mechanism for Ankle Rehabilitation”, International Journal of Robotics Research, 2009.
J.A. Saglia, N.G.Tsagarakis, J.S. Dai and D.G. Caldwell, “Inverse Kinematics Based Control of a Redundantly Actuated Platform for Rehabilitation”, Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, IMechE Vol. 223, pp53-70, 2009.
A. Ajoudani, N. G. Tsagarakis, and A. Bicchi. Tele-Impedance: Preliminary Results on Measuring and Replicating Human Arm Impedance in Tele Operated Robots. In IEEE International Conference on Robotics and Biomimetics - ROBIO 2011, Phuket, Thailand, pages 216 - 223, December 7-11, 2011.
F.L. Moro N.G. Tsagarakis and D.G. Caldwell, “A Human-like Walking for the COmpliant huMANoid COMAN based on CoM Trajectory Reconstruction from Kinematic Motion”, 11th IEEE-RAS International Conference on Humanoid Robots, Bled, Slovenia, 2011, pp. 364-370.
Fabrizio Flacco, Alessandro De Luca, Irene Sardellitti, N. G. Tsagarakis, “Robust Estimation of Variable Stiffness in Flexible Joints”, International Conference on Intelligent Robots and Systems (IROS 2011), pp4026-4033.
N. G. Tsagarakis, Irene Sardellitti, Darwin G. Caldwell, A New Variable Stiffness Actuator (CompAct-VSA): Design and Modelling, International Conference on Intelligent Robots and Systems (IROS 2011), pp 378-383.
Petar Kormushev, Barkan Ugurlu, Sylvain Calinon, N. G. Tsagarakis, Darwin G. Caldwell, “Bipedal Walking Energy Minimization by Reinforcement Learning with Evolving Policy Parameterization”, International Conference on Intelligent Robots and Systems (IROS 2011), pp 318-324.
N. Garcia-Hernandez., I. Sarakoglou, N.G, Tsagarakis and D.G. Caldwell, “Orientation Discrimination of Patterned Surfaces through an Actuated and Non-actuated Tactile Display”, IEEE - World Haptics Conference 2011, pp 599 - 604.
N. Garcia-Hernandez., I. Sarakoglou, N.G, Tsagarakis and D.G. Caldwell , “Effectiveness of a Tactile Display for Providing Orientation Information of 3d-patterned Surfaces”, Virtual and Mixed Reality - Systems and Applications, Part II, HCI, Lecture Notes in Computer Science, 2011, Vol 6774, pp 327-332.
D.M. Gan, N.G.Tsagarakis, Jian Dai, Darwin G. Caldwell , “Stiffness Design for Compliant Manipulators based on Dynamics Analysis of the impact configuration”, ASME 2011 International Design Engineering Technical Conferences (IDETC) and Computers and Information in Engineering Conference (CIE), 2011.
N.G. Tsagarakis, Zhibin Li, Jody Alessandro Saglia, Darwin G. Caldwell, “The Design of the Lower Body of the Compliant Humanoid Robot “cCub””, IEEE International Conference on Robotics and Automation Conference, (ICRA 2011), Shanghai, pp 2035 – 2040.
Manuel Catalano*, Giorgio Grioli, Manolo Garabini, Fabio Bonomo, N.G. Tsagarakis, Antonio Bicchi,“VSA-CubeBot: a modular variable stiffness platform for multiple degrees of freedom robots”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2011),Shanghai, pp 5090 – 5095.
Alessandro Serio, Giorgio Grioli, Irene Sardellitti*, N.G. Tsagarakis, Antonio Bicchi, “A Decoupled Impedance Observer for a Variable Stiffness Robot”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2011), Shanghai, pp 5548 - 5553.
Amir Jafar, N.G.Tsagarakis, and D.G.Caldwell, “AwAS-II: A New Actuator with Adjustable Stiffness based on the Novel Principle of Adaptable Pivot point and Variable Lever ratiot”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2011), Shanghai, pp 4638-4642.
Amir Jafar, N.G.Tsagarakis, and D.G.Caldwell, “Exploiting Natural Dynamics for Energy Minimization using an Actuator with Adjustable Stiffness”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2011), Shanghai, pp 4632-4637.
M. Laffranchi, N.G.Tsagarakis, and D.G.Caldwell, “A Compact Compliant Actuator with Variable Physical Damping”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2011), Shanghai, pp 4644-4650.
B Ugurlu, N.G. Tsagarakis, E. Spyrakos-Papastavridis. and D.G. Caldwell, “Compliant Joint Modification and Real-Time Dynamic Walking Implementation on Bipedal Robot cCub”, IEEE International Conference on Mechatronics, ICM 2011.
N. G. Tsagarakis, Amir Jafari and Darwin G. Caldwell, “A Novel Variable Stiffness Actuator: Minimizing the Energy Requirements for the Stiffness Regulation”, 32nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC 2010), pp 1275 – 1278.
J. A. Saglia, N.G. Tsagarakis, J. S. Dai and D. G. Caldwell, “Assessment of the Assistive Performance of an Ankle Exerciser using Electromyographic Signals”, IEEE 32nd International Conference on Engineering in Medicine and Biology, EMBC 2010, pp 5854 -5858.
J. Iqbal, N.G. Tsagarakis, A.E. Fiorilla and D.G. Caldwell, “A portable rehabilitation device for the hand”, 32nd annual IEEE international conference of Engineering in Medicine and Biology Society (EMBS 2010), Buenos Aires, pp3694 – 3697,
Amir Jafari, N. G. Tsagarakis, Bram Vanderborght and Darwin G. Caldwell, “A Novel Actuator with Adjustable Stiffness (AwAS)”, The 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems(IROS 2010), pp 4201 – 4206
I. Sardellitti, G.Palli, N.G. Tsagarakis, D.G. Caldwell, “Antagonistically Actuated Compliant Joint: Torque and Stiffness control”, International Conference on Intelligent Robots and Systems (IROS 2010), pp 1909-1914.
E. Guglielmino, N.G. Tsagarakis and D. G. Caldwell, “An Octopus Anatomy-inspired Robotic Arm”, IEEE/RSJ Int. Conf. on Intelligent RObots and Systems (IROS 2010), pp 3091-3096.
M. Focchi, E. Guglielmino, C. Semini, A. Parmiggiani, N.G. Tsagarakis, B. Vanderborght and D. G. Caldwell, “Water/Air Performance Analysis of a Fluidic Muscle”, EEE/RSJ Int. Conf. on Intelligent RObots and Systems (IROS 2010), pp 2194-2199.
C. Semini, N. G. Tsagarakis, E. Guglielmino, D. G. Caldwell, “Design and Experimental Evaluation of the Hydraulically Actuated Prototype Leg of the HyQ Robot”, IEEE/RSJ Int. Conf. on Intelligent Robots and Systems (IROS 2010), pp3640 – 3645.
C. Semini, N. G. Tsagarakis, E. Guglielmino and D. G. Caldwell, “Design of HyQ – a Hydraulically and Electrically Actuated Quadruped Robot”, Workshop on Human Adaptive Mechatronics (HAM 2010)
Nadia Garcia-Hernandez, N.G.Tsagarakis, and D.G.Caldwell , “Human Tactile ability to discriminate variations in Small Ridge Patterns thorugh a Portable-wearable Tactile Display”, International Conferences on Advances in Computer-Human Interactions (ACHI 2010)
Nadia Garcia-Hernandez, N.G. Tsagarakis, I. Sarakoglou and D.G.Caldwell, “Psychophysical Evaluation of a Low Density and Portable Tactile Device Displaying Small-scale Surface Features”, Springer Lecture Notes in Computer Science, Haptics: Generating and Perceiving Tangible Sensations, 2010, Volume 6192/2010, pp 50-57.
Jody A. Saglia, N.G.Tsagarakis, Jian Dai, Darwin G. Caldwell, “Control Strategies for Ankle Rehabilitation using a High Performance Ankle Exerciser”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2010), Anchorage, pp 2221-2227.
M. Laffranchi, N.G.Tsagarakis, and D.G.Caldwell, “A Variable Physical Damping Actuator (VPDA) for Compliant Robotic Joints”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2010), Anchorage, pp 1668-1674.
N.G.Tsagarakis, Bram Vanderborght, Matteo Laffranchi and D.G.Caldwell, “The Mechanical Design of the New Lower Body for the Child Humanoid robot ‘iCub’ ”, IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009, pp 4962-4968.
Yousheng Yang, Claudio Semini, N.G.Tsagarakis, Emanuele Guglielmino and Darwin G. Caldwell, “Leg Mechanisms for Hydraulically Actuated Robots”, IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009, pp 4669-4675.
M. Laffranchi, N.G.Tsagarakis, F. Cannella, and D.G.Caldwell, “Antagonistic and Series Elastic Actuators: a Comparative Analysis on the Energy Consumption”, IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009, pp 5678-5684.
Matteo Laffranchi, N.G.Tsagarakis, Darwin G. Caldwell, “Safe Human Robot Interaction via Energy regulation control”, IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS 2009, pp 35-41.
Nadia Garcia-Hernandez, N.G.Tsagarakis and D. G. Caldwell, “Effect of the Tactile Array Density on the Discrimination of Edge Patterns: Implications for Tactile Systems Design“, IEEE International Conference on Advanced Robotics, 2009, pp 1-6.
N.G.Tsagarakis, Matteo Laffranchi, Bram Vanderborght, Darwin G. Caldwell, “A Compact Soft Actuator Unit for Small Scale Human Friendly Robots”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2009), Kobe Japan, pp 4356-4362.
Jody A. Saglia, N.G.Tsagarakis, Jian Dai, Darwin G. Caldwell, “A High Performance 2-dof Over-Actuated Parallel Mechanism for Ankle Rehabilitation”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2009), Kobe Japan, pp 2180-2186.
Bram Vanderborght, N.G.Tsagarakis, Claudio Semini, Ronald Van Ham, Darwin G. Caldwell “MACCEPA 2.0: Compliant Actuator used for Energy Efficient Hopping Robot CHOBIN”, IEEE International Conference on Robotics and Automation Conference, (ICRA 2009), Kobe Japan, pp 544-549.
N.G.Tsagarakis, Martin Cube, D.G.Caldwell, “2D Motion Coordination Enhancement for ‘Ataxia’ impaired users using a planar haptic device”, IEEE International Conference on Humanoid Robots 2008 (IROS 2008), pp 729-734.
Claudio Semini, N.G.Tsagarakis, Bram Vanderborght and Darwin G. Caldwell, “HyQ – Hydraulically Actuated Quadruped Robot – Ready, Set, Jump”, IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics, 2008 (BioRob 2008), pp 593-599.
S.Kousidou, N.G.Tsagarakis, C.Smith and D.G.Caldwell,”Task-Orientated Biofeedback System for the Rehabilitation of the Upper Limb”, 10th Int. Conf. on Rehabilitation Robotics, (ICORR), 2007, pp 376-384.
N.G.Tsagarakis, Francesco Becchi , Martin Singlair, Giorgio Metta, D.G.Caldwell and G. Sandini, ”Lower body realization of the baby humanoid - ‘iCub’” , IEEE International Conference on Humanoid Robots, (IROS 2007), pp3616 - 3622, 2007
I.Sarakoglou, M.Benzichec, N.G.Tsagarakis, D.G.Caldwell, “Free to touch: A portable Tactile Display For 3D surface exploration”, IEEE International Conference on Intelligent Robotic Systems, IEEE/RSJ International Conference on Intelligent Robots and Systems, pp3587-3592, 2006, (20 Years IROS, NTF Award Finalist for Entertainment Robots and Systems, IROS 2007)
N.G. Tsagarakis, S.Kousidou, D.G.Caldwell, “Case Study: Soft-Actuated Exoskeleton for Use in Physiotherapy and Training”, Wearable Robots: Biomechatronic Exoskeletons, John Wiley & Sons, ISBN10: 0470512946, pp 270-278, 2008.
N.G.Tsagarakis, G.Metta, G.Sandini, D.Vernon, R.Beira, F.Becchi, L.Righetti, J.S.Victor, A.J. Ijspeert, M.C.Carrozza and D.G.Caldwell, ”iCub –The Design and Realization of an Open Humanoid Platform for Cognitive and Neuroscience Research”, Advanced Robotics, Special Issue on Robotic platforms for Research in Neuroscience, Vol.21, No.10, pp, 1151-1175, 2007.
Darwin G. Caldwell, N.G. Tsagarakis, S. Kousidou, N. Costa and Y. Sarakoglou, “Soft’ Exoskeletons for Upper and Lower Body Rehabilitation – Design, Control and Testing”, Journal of Humanoids Robotics: Special issue on active exoskeletons, Vol.4 No. 3 , pp. 549-573, 2007.
N.G.Tsagarakis, F. Becchi, L.Righetti, A.J. Ijspeert and D.G.Caldwell” Lower Body Realization of the Baby Humanoid - ‘iCub’” , IEEE International Conference on Humanoid Robots, (IROS 2007), pp3616-3622, 2007
I.Sarakoglou, M.Benzichec, N.G.Tsagarakis, D.G.Caldwell, “Free to touch: A portable Tactile Display For 3D surface exploration”, IEEE International Conference on Intelligent Robotic Systems, IEEE/RSJ International Conference on Intelligent Robots and Systems, pp3587-3592, 2006 (20 Years IROS, NTF Award Finalist for Entertainment Robots and Systems, IROS 2007)
N.G.Tsagarakis, M. Petrone, D. Testi, R. Mayoral, C. Zannoni, M. Viceconti and G.J. Clapworthy, D.G.Caldwell,” Pre-Operative Planning for Total hip Arthroplasty using aHaptic Enabled Multimodal Interface and Framework”, Multimedia and Visualization Magazine:Special Issue in Haptics, Jul-Sept 2006, pp 40-48.
N.G.Tsagarakis and Darwin.G.Caldwell, ”Development and control of a ‘Soft-actuated’ exoskeleton for use in Physiotherapy and Training”, Autonomous Robots, Special issue on Rehabilitation Robotics, Vol 15, pp 21-33, 2003.
N.G. Tsagarakis and Darwin G. Caldwell, “Development And Control Of A Physiopherapy And Training Exercise Facility For The Upper Limb Using Soft Actuators”, IEEE International Conference on Advanced Robotics 2003, pp 1092-1095, Coimbra, Portugal. (Best Paper Award, ΙΕΕΕ ICAR 2003 )