Results 11 to 20 of about 4,624 (156)

X-Shaped Structure-Based Modeling and Control for a Stable Platform with a Series Elastic Actuator

open access: yesMachines, 2022
Stable platforms are widely used in many fields to keep the environment stable for the load under the influence of the motion of the craft and other carriers. However, its stability has always been an important and serious challenge for researchers.
Ai Teng   +4 more
doaj   +3 more sources

Exploring the Just Noticeable Interaction Stiffness Differences of an Impedance-Controlled Series Elastic Actuator

open access: yesActuators, 2023
The integration of a passive elastic element in series between a motor and its load is popular in many human–robot interaction scenarios. By virtually imposing elastic behavior on the motor, an impedance control can act as a second stiffness to such an ...
Rodrigo J. Velasco-Guillen   +3 more
doaj   +1 more source

Series elastic actuators [PDF]

open access: yesProceedings 1995 IEEE/RSJ International Conference on Intelligent Robots and Systems. Human Robot Interaction and Cooperative Robots, 2002
It is traditional to make the interface between an actuator and its load as stiff as possible. Despite this tradition, reducing interface stiffness offers a number of advantages, including greater shock tolerance, lower reflected inertia, more accurate and stable force control, less inadvertent damage to the environment, and the capacity for energy ...
Gill A. Pratt, Matthew M. Williamson
openaire   +1 more source

Continuously-variable series-elastic actuator [PDF]

open access: yes2013 IEEE 13th International Conference on Rehabilitation Robotics (ICORR), 2013
Actuator efficiency is an important factor in the design of powered leg prostheses, orthoses, exoskeletons, and legged robots. A continuously-variable series-elastic actuator (CV-SEA) is presented as an efficient actuator for legged locomotion. The CV-SEA implements a continuously-variable transmission (CVT) between a motor and series elastic element ...
Mooney, Luke M., Herr, Hugh M
openaire   +3 more sources

Design and Experiment of an Anthropomorphic Robot Hand for Variable Grasping Stiffness

open access: yesIEEE 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
doaj   +1 more source

Design and Validation of a Lightweight Hip Exoskeleton Driven by Series Elastic Actuator With Two-Motor Variable Speed Transmission

open access: yesIEEE 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
doaj   +1 more source

Design, Optimization and Energetic Evaluation of an Efficient Fully Powered Ankle-Foot Prosthesis With a Series Elastic Actuator

open access: yesIEEE Access, 2020
The use of powered ankle-foot prostheses for below-knee amputees leads to challenges like the peak power of the applied actuator and biomechanical features of the prosthesis foot.
Dianbiao Dong   +5 more
doaj   +1 more source

Design and Control of Cylindrical Linear Series Elastic Actuator [PDF]

open access: yes한국정밀공학회지, 2019
Recently, there are numerous studies on robots to function with smoother movement and high efficiency. It is difficult to develop robots with smooth movement and high efficiency. To solve this problem, the Series Elastic Actuator (SEA) is used.
KwangJin Lee, SangRyong Lee, Hak Yi
doaj   +1 more source

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