Results 11 to 20 of about 5,307 (217)

Adjustable Stiffness-Based Supination–Pronation Forearm Physical Rehabilitator

open access: yesApplied Sciences, 2022
This paper reports a new medical device together with a control strategy that focuses on the following tasks: (1) a trajectory tracking problem associated with the supination–pronation motion of the wrist–forearm for purposes of rehabilitation and (2 ...
Adrian Camacho-Ramirez   +4 more
doaj   +1 more source

Constant Small Tension Control for Fiber Optic Coil Variable-Velocity Winding

open access: yesIEEE Access, 2019
Fiber Optic Gyroscope (FOG) is a new type of rotation sensor that plays an important role in navigation and guidance system. As the sense element of FOG, the fiber coil (FOC) performance directly affects the FOG measurement precision.
Shuangchao Ge, Ruifeng Yang, Chenxia Guo
doaj   +1 more source

Distribution of the Strip Tensions with Slip Control in Strip Processing Lines

open access: yesEnergies, 2019
The control of tension in processing lines for metal strips tackles several problems. The process of achieving high tension driven by a multi-motor drive system, where the motors are mechanically coupled by a strip, is affected by the maximal torque of ...
Daniel Magura   +3 more
doaj   +1 more source

A New Composite Control Strategy for an Astronaut Virtual Operation Training System Based on Cable-Driven Technology

open access: yesActuators, 2023
In recent years, virtual microgravity training technology for astronauts based on cable-driven designs has emerged, and it solves the following problems: high costs, short training times, and low safety of existing equipment.
Feng Xue   +4 more
doaj   +1 more source

Chain tension control of scraper conveyor based on sliding mode control

open access: yesGong-kuang zidonghua, 2015
According to nonlinear, stochastic and time-varying characteristics of chain tension control of scraper conveyor in coal mine underground, a chain tension control system of scraper conveyor was proposed which was based on sliding mode control method to ...
GONG Shangfu, YANG Na
doaj   +1 more source

Research and Embedded Implementation of Let-Off and Take-Up Dynamic Control Based on Fuzzy Neural Network and Vector Control Optimization

open access: yesIEEE Access, 2022
This paper investigates the warp let-off and take-up mechanism of rapier looms to solve the problem that the warp tension of rapier looms fluctuates greatly and the warp let-off is difficult to maintain constant. The design and hardware implementation of
Yanjun Xiao   +4 more
doaj   +1 more source

Tension Networked Control Strategy for Carbon Fiber Multilayer Diagonal Loom

open access: yesIEEE Access, 2020
With the aim of solving warp tension control problems in the let-off system and opening system in the carbon fiber multilayer diagonal loom, dynamic models of warp tension are established in this study based on dynamic analysis.
Wei Liu   +4 more
doaj   +1 more source

The Effect of Tension and Drop Height on Contact Angle of Droplet on Flexible Substrate in Roll-to-Roll Systems [PDF]

open access: yes한국정밀공학회지, 2017
This study proposes a method for identifying correlations between tension and drop height for sessile droplets in a roll-to-roll processing system. The effect of tension and drop height on the contact angle of a sessile droplet is presented.
Dongguk Kim, Changwoo Lee
doaj   +1 more source

Modeling and sensorless tension control of SMA actuator using GRU

open access: yesNihon Kikai Gakkai ronbunshu, 2020
This paper proposes a method for sensorless tension control of shape memory alloy(SMA) actuators. Sensorless control has advantages in cost and size. Gated recurrent unit(GRU) was adopted to model complex characteristics of the SMA actuators.
Soki ITO, Hiroyuki HARADA
doaj   +1 more source

Material Tracking with Dynamic Torque Adaptation for Tension Control in Wire Rod Mill

open access: yesAdvances in Electrical and Electronic Engineering, 2017
Material tracking is an important part of the automation control system which has a major impact on the product quality. This paper addresses a stand load identification in wire rod mill as a new algorithm added to existing control system.
Tomas Borovsky   +2 more
doaj   +1 more source

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