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The Design and Testing of a PEA Powered Ankle Prosthesis Driven by EHA
Biomimetics, 2022 Several studies have shown that actuation concepts such as Serial elastic actuator (SEA) can reduce peak power and energy consumption in ankle prostheses.
Qitao Huang, Bowen Li, Hongguang Xu
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Design and Experiment of an Anthropomorphic Robot Hand for Variable Grasping Stiffness
IEEE Access, 2021 This paper introduces an anthropomorphic robot hand that has variable grasping stiffness to unknown objects without damage. The robot hand has four fingers, 13 DoFs (Degrees of Freedom) with three SEA (Series Elastic Actuator) modules in the index ...
Hyeonjun Park +3 more
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IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2022 To overcome the different requirements of torque-velocity characteristics for walking, running, stand-to-sit, sit-to-stand, and climbing stairs, we propose a novel concept for actuator design, namely, a series elastic actuator with two-motor variable ...
Ting Zhang +3 more
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Helical beating of an actuated elastic filament [PDF]
Journal of Physics: Condensed Matter, 2009 We investigate the propulsive force resulting from the rotation of a flexible filament in the low Reynolds number regime. Using a simple linear model, we establish the nonlinear torque-force relations for two torque-driven actuation modes. When the rotation of the filament is induced by two perpendicular transverse oscillating torques, the propulsive ...
Naïs, Coq +3 more
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The Energy Amplification Characteristic Research of a Multimodal Actuator
International Journal of Advanced Robotic Systems, 2016 A multimodal actuator is proposed to fulfil the different walking patterns of a power-assisted knee exoskeleton. With this actuator, the exoskeleton leg can realize several modes of operation, including series elastic actuation, stiff position control ...
Han Yali +4 more
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Sensors, 2010 Elastic waves, especially guided waves, generated by a piezoelectric actuator/sensor network, have shown great potential for on-line health monitoring of advanced aerospace, nuclear, and automotive structures in recent decades.
Guoliang Huang, Fei Song, Xiaodong Wang
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IEEE Access, 2020 A series elastic actuator (SEA) includes an elastic spring in series with an actuator. SEAs provide more accurate force and impedance control than conventional rigid actuators.
Kuei-You Lin +2 more
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Bi-directional series-parallel elastic actuator and overlap of the actuation layers [PDF]
Bioinspiration & Biomimetics, 2016 Several robotics applications require high torque-to-weight ratio and energy efficient actuators. Progress in that direction was made by introducing compliant elements into the actuation. A large variety of actuators were developed such as series elastic actuators (SEAs), variable stiffness actuators and parallel elastic actuators (PEAs).
Raphaël Furnémont +4 more
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Novel Design and Modeling of a Soft Pneumatic Actuator Based on Antagonism Mechanism
Actuators, 2020 The soft actuator possesses the characteristics of flexibility, environmental adaptability, and human–machine interaction. Firstly, aiming to resolve the limitation of variable stiffness performance of a traditional pneumatic artificial muscle (PAM ...
Yinglong Chen +2 more
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Design optimization of powered ankle prosthesis to reduce peak power requirement
Science Progress, 2022 The aim of the prosthetic devices is to replicate the able-bodied angle-torque profile of a healthy human during locomotion. A lightweight and energy-efficient ankle joint is able to lower the actuator peak power and/or energy consumption per gait cycle,
Muhammad Bilal +4 more
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