Articles with "servo" as a keyword



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Neural Network Based Visual Servo Control Under the Condition of Heavy Loading

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Published in 2021 at "International Journal of Control, Automation and Systems"

DOI: 10.1007/s12555-020-0222-2

Abstract: This paper proposes an image-based visual servo (IBVS) control system for hoist positioning under the condition of heavy loading. Various advanced visual servo methods for positioning have been proposed. However, the visual servo scheme under… read more here.

Keywords: condition heavy; system; visual servo; heavy loading ... See more keywords
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Visual servo for gravity compensation system

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Published in 2017 at "Neurocomputing"

DOI: 10.1016/j.neucom.2017.04.071

Abstract: Abstract This paper proposed a visual servo framework for the tower-crane-like Gravity Compensation System that is widely used in various aerospace ground tests. In this framework, a real-time detection algorithm is proposed to measure the… read more here.

Keywords: compensation; visual servo; compensation system; servo ... See more keywords
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Parameter identification of a jet pipe electro-pneumatic servo actuator

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Published in 2017 at "International Journal of Fluid Power"

DOI: 10.1080/14399776.2016.1224415

Abstract: Abstract This paper presents experimental parameter identification of a jet pipe electro-pneumatic servo actuator model, which represents a class of high performance fast actuation systems. Parameter identification is given including detailed representation of linear dynamics,… read more here.

Keywords: parameter identification; jet pipe; model; electro pneumatic ... See more keywords
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Adaptive Failure Compensation of Actuators in Controlling Servo System Driven by Twin Motors

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2876887

Abstract: In this paper, an adaptive control scheme based on backstepping techniques is proposed for a class of servo systems driven by twin motors with unknown actuator failures. Unlike the existing results about fault tolerant control… read more here.

Keywords: twin motors; control scheme; system; driven twin ... See more keywords
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Active Compliance Control on the Hydraulic Quadruped Robot With Passive Compliant Servo Actuator

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2951830

Abstract: A hydraulic servo actuator with passive compliance (HPCA) is designed for hydraulic actuated quadruped robots, aiming to solve the response discrepancy of the low-bandwidth servo valve to impact forces between robot’s feet and the ground.… read more here.

Keywords: control; compliance; compliance control; servo ... See more keywords
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Dynamics-Level Finite-Time Fuzzy Monocular Visual Servo of an Unmanned Surface Vehicle

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Published in 2020 at "IEEE Transactions on Industrial Electronics"

DOI: 10.1109/tie.2019.2952786

Abstract: In this article, in the presence of completely unknown dynamics and unmeasurable velocities, a dynamics-level finite-time fuzzy monocular visual servo (DFFMVS) scheme is created for regulating an unmanned surface vehicle (USV) to the desired pose.… read more here.

Keywords: finite time; dynamics level; monocular visual; visual servo ... See more keywords

Linear active disturbance rejection control for the electro-hydraulic position servo system

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Published in 2021 at "Science Progress"

DOI: 10.1177/00368504211000907

Abstract: Valve-controlled asymmetric cylinder is widely used in servo loading system. As a kind of typical electro-hydraulic servo system (EHSS), it inherently has the characteristics such as high order nonlinear, strong coupling, and uncertain, therefore, conventional… read more here.

Keywords: electro hydraulic; control; servo system; linear active ... See more keywords
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Cavitation and flow forces in the flapper-nozzle stage of a hydraulic servo-valve manipulated by continuous minijets

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Published in 2019 at "Advances in Mechanical Engineering"

DOI: 10.1177/1687814019851436

Abstract: Electro-hydraulic servo-valves play key roles in modern electro-hydraulic power systems in many industrial applications. As one of the widely used hydraulic servo-valves, cavitation in the flapper-nozzle servo-valve could produce deleterious effects of noise, flapper vibration… read more here.

Keywords: cavitation; flapper nozzle; continuous minijets; flow forces ... See more keywords
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Linearisation control of AC permanent magnet synchronous motor servo system based on sensor technology

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Published in 2020 at "International Journal of Biometrics"

DOI: 10.1504/ijbm.2020.10027197

Abstract: AC permanent magnet synchronous motor servo control system is a complex nonlinear, strong coupling and time-varying system. It has strong uncertainty and nonlinearity, and when the system is running, it also will be disturbed to… read more here.

Keywords: system; permanent magnet; control; linearisation control ... See more keywords
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Development of a Four-Way Pinch-Type Servo Valve for Pneumatic Actuator

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Published in 2020 at "Applied Sciences"

DOI: 10.3390/app10031066

Abstract: Pneumatic servo valves are key components of pneumatic servo systems. Multi-degree-offreedom systems, such as robot systems, utilize many servo valves to control their actuators. However, conventional servo valves always consume air due to leakage even… read more here.

Keywords: control; servo valves; pneumatic actuator; servo valve ... See more keywords
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In-Situ Measurement and Slow-Tool-Servo Compensation Method of Roundness Error of a Precision Mandrel

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Published in 2022 at "Materials"

DOI: 10.3390/ma15228037

Abstract: This paper describes a method for measuring and compensating the roundness error of a larger mandrel manufactured by an ultra-precision diamond-turning lathe aimed to obtain a calibration cylinder with a roundness of less than 0.1… read more here.

Keywords: roundness error; error; slow tool; servo ... See more keywords