Results 11 to 20 of about 388,447 (291)

Fractional Order Impedance Control [PDF]

open access: yesIEEE Access, 2020
This paper proposes a novel fractional order impedance control. In traditional impedance control model, the orders of inertia, damping, and stiffness are integers and the contact force can be reduced effectively to some extent in robots and manipulators.
Guangrong Chen   +3 more
doaj   +3 more sources

Adaptive End-Effector Buffeting Sliding Mode Control for Heavy-Duty Robots with Long Arms

open access: yesMathematics, 2023
This study aims to resolve the problems of low precision, poor flexibility and unstable operation in the control performance of loading robots with long telescopic booms and heavy loads.
Wenqiang Wu   +8 more
doaj   +1 more source

Application of the Half-Order Derivative to Impedance Control of the 3-PUU Parallel Robot

open access: yesActuators, 2022
This paper presents an extension of impedance control of robots based on fractional calculus. In classical impedance control, the end-effector reactions are proportional to the end-effector position errors through the stiffness matrix K, while damping is
Luca Bruzzone   +2 more
doaj   +1 more source

Realization of Force Detection and Feedback Control for Slave Manipulator of Master/Slave Surgical Robot

open access: yesSensors, 2021
Robot-assisted minimally invasive surgery (MIS) has received increasing attention, both in the academic field and clinical operation. Master/slave control is the most widely adopted manipulation mode for surgical robots.
Hu Shi   +3 more
doaj   +1 more source

Anti-Disturbance Sliding Mode Control of a Novel Variable Stiffness Actuator for the Rehabilitation of Neurologically Disabled Patients

open access: yesFrontiers in Robotics and AI, 2022
Lower limb exoskeletons are widely used for rehabilitation training of patients suffering from neurological disorders. To improve the human–robot interaction performance, series elastic actuators (SEAs) with low output impedance have been developed ...
Lufan Mo   +8 more
doaj   +1 more source

Automatic walking pattern transformation method of an assistive device during stair-ground transition

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
This study mainly aims to ensure the safety of elderly people with a walking assistive device during ground-stair transition. A system that could automatically transfer the walking mode of the assistive device after detecting the ground or stairs is ...
Bo-Rong YANG   +5 more
doaj   +1 more source

Impedance scaling and impedance control [PDF]

open access: yesProceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167), 2002
When a machine becomes really large, such as the Very Large Hadron Collider (VLHC), of which the circumference could reach the order of megameters, beam instability could be an essential bottleneck. This paper studies the scaling of the instability threshold vs. machine size when the coupling impedance scales in a "normal" way.
Chou, W., Griffin, J.
openaire   +1 more source

Automatic Fruit Harvesting Device Based on Visual Feedback Control

open access: yesAgriculture, 2022
With aging populations, and people′s demand for high-quality or high-unit-price fruits and vegetables, the corresponding development of automatic fruit harvesting has attracted significant attention.
Bor-Jiunn Wen, Che-Chih Yeh
doaj   +1 more source

Negative-Stiffness Structure Vibration-Isolation Design and Impedance Control for a Lower Limb Exoskeleton Robot

open access: yesActuators, 2023
The series elastic actuator (SEA) is generally used as the torque source of the exoskeleton robot for human–robot interaction (HRI). In this paper, an impedance control method for lower limb exoskeleton robots driven by SEA is presented.
Yaohui Sun, Jiangping Hu, Rui Huang
doaj   +1 more source

Suppress Vibration on Robotic Polishing with Impedance Matching

open access: yesActuators, 2021
Installing force-controlled end-effectors on the end of industrial robots has become the mainstream method for robot force control. Additionally, during the polishing process, contact force stability has an important impact on polishing quality. However,
Junjie Dai   +5 more
doaj   +1 more source

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