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We present the kinematics, optimal dimensional synthesis, series-elastic actuation, control, characterization and user evaluation of AssistOn-Ankle, a reconfigurable, powered exoskeleton for ankle rehabilitation. AssistOn-Ankle features reconfigurable kinematics for delivery of both range of motion (RoM)/strengthening and balance/proprioception exercises. In particular, through lockable joints, the...
This paper presents design, implementation and control of a 3RPS-R exoskeleton, specifically built to impose targeted therapeutic exercises to forearm and wrist. Design of the exoskeleton features enhanced ergonomy, enlarged workspace and optimized device performance when compared to previous versions of the device. Passive velocity field control (PVFC) is implemented at the task space of the manipulator...
Optimal dimensional synthesis, impedance control and experimental characterization a Modified Delta Mechanism based haptic interface are presented. In particular, a multi-criteria design optimization problem is formulated to maximize the transparency of the device. Kinetostatic and dynamic performance indices are optimized simultaneously to reveal design trade-offs between these metrics and an optimal...
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