Results 11 to 20 of about 24,820 (277)

High‐gain observer‐based output feedback control of single‐rod electro‐hydraulic actuator

open access: yesIET Control Theory and Applications, 2015
In this study, a non‐linear backstepping control method based on a high‐gain observer design is presented for a single‐rod electro‐hydraulic actuator, which is not a strict feedback non‐linear system. An equivalent model transformation is used for load pressure to establish the relationship between displacement command and virtual command of load ...
Qing Guo
exaly   +2 more sources

The design, kinematics and torque analysis of the self-bending soft contraction actuator [PDF]

open access: yes, 2020
This article presents the development of a self-bending contraction actuator (SBCA) through analysis of its structure, kinematics, and torque formulas, and then explores its applications.
Al-Ibadi, A, Davis, ST, Nefti-Meziani, S
core   +2 more sources

Internal Leakage Fault Detection and Tolerant Control of Single‐Rod Hydraulic Actuators [PDF]

open access: yesMathematical Problems in Engineering, 2014
The integration of internal leakage fault detection and tolerant control for single‐rod hydraulic actuators is present in this paper. Fault detection is a potential technique to provide efficient condition monitoring and/or preventive maintenance, and fault tolerant control is a critical method to improve the safety and reliability of hydraulic servo ...
Jianyong Yao, Guichao Yang, Dawei Ma
openaire   +1 more source

Two Functional Classes of Rod Bipolar Cells in the Healthy and Degenerated Optogenetically Treated Murine Retina

open access: yesFrontiers in Cellular Neuroscience, 2022
Bipolar cells have become successful targets for optogenetic gene therapies that restore vision after photoreceptor degeneration. However, degeneration was shown to cause changes in neuronal connectivity and protein expression, which may impact the ...
Giulia Schilardi, Sonja Kleinlogel
doaj   +1 more source

A compact underactuated gripper with two fingers and a retractable suction cup

open access: yesFrontiers in Robotics and AI, 2023
Modern industrial applications of robotics such as small-series production and automated warehousing require versatile grippers, i.e., grippers that can pick up the widest possible variety of objects.
Julien Courchesne   +2 more
doaj   +1 more source

State-Constrained Control of Single-Rod Electrohydraulic Actuator With Parametric Uncertainty and Load Disturbance [PDF]

open access: yesIEEE Transactions on Control Systems Technology, 2018
The suppression of disturbances under parametric uncertainties is one of the most common control problems in electrohydraulic systems, as both disturbances and uncertainties often significantly degrade the tracking performance and bias the load pressure of the electrohydraulic actuator (EHA).
Qing Guo 0003   +3 more
openaire   +1 more source

Design and Implementation of a Lizard-Inspired Robot

open access: yesApplied Sciences, 2021
The purpose of this paper is to design a lizard-inspired robot driven by a single actuator. Lizard-inspired robots in previous studies had the issue of slippage of their supporting legs.
Shunsuke Nansai   +3 more
doaj   +1 more source

Lift-off dynamics in a simple jumping robot [PDF]

open access: yes, 2012
We study vertical jumping in a simple robot comprising an actuated mass-spring arrangement. The actuator frequency and phase are systematically varied to find optimal performance.
Alex Lesov   +17 more
core   +2 more sources

Implementing a Precision Pneumatic Plug Tray Seeder with High Seeding Rates for Brassicaceae Seeds via Real-Time Trajectory Tracking Control

open access: yesActuators, 2023
In recent years, the aging of the rural population worldwide has become a major concern, necessitating the development of agricultural automation. Pneumatic energy has emerged as a reliable and environmentally friendly option, aiding in the global effort
Hao-Ting Lin, Yu-Hsien Lee
doaj   +1 more source

The first magnetically controlled growing rod (MCGR) in the world – lessons learned and how the identified complications helped to develop the implant in the past decade: case report

open access: yesBMC Musculoskeletal Disorders, 2021
Background The first magnetically controlled growing rod (MCGR) was implanted in 2009. Since then multiple complications have been identified that have helped drive the development of the MCGR and its surgery.
Jason Pui Yin Cheung   +3 more
doaj   +1 more source

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