Results 21 to 30 of about 504 (216)
Nihon Kikai Gakkai ronbunshu, 2022 The arc welding robot uses a weaving motion that periodically oscillates the welding torch installed at the tip of the robot. The weaving motion is used for the arc sensor to follow the weld fusion line, and the error of the oscillation has large effects
Masafumi OKADA, Takeshi KOIKE
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Aerospace, 2022 A dynamic load simulator, which can reproduce on-ground aerodynamic hinge moment of control surface, is an essential rig for the performance and stability test of an aircraft actuation system.
Wensen Zhang +4 more
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A Study of Friction Nonlinearity and Compensation for Turntable Servo Systems
Applied SciencesIn view of the worse dynamic performance and steady-state accuracy caused by nonlinear friction in turntable servo systems, challenges are posed in precise positioning tasks. However, most of the existing research ignores the effect of friction on system
Minjie Yan +4 more
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IEEE Access, 2023 To improve the control accuracy and stability of the harmonic drive system under the influence of nonlinear friction and external disturbances, we have developed an adaptive neural backstepping control approach with friction compensation.
Yu Xia +4 more
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MachinesElectro-hydraulic servo systems are widely used in industrial machinery and automation due to their high power density and fast dynamic response; however, their achievable positioning accuracy is often limited by nonlinear friction effects.
Phu Phung Pham +2 more
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A Friction Disturbance Compensation Method for Electromechanical Actuator Based on Fractional Order Adaptive Neural Network [PDF]
Hangkong bingqiFriction torque disturbance affects the tracking performance of electromechanical actuator servo system, bringing position and speed tracking errors, and even may leading to instability of the servo system.
Chen Yufeng, Xu Xiaolu, Zhang Jinpeng, Zhang Kunfeng, Yue Qiang, Zhang Wenjing
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Adaptive Friction Compensation for a Novel Two-Axis Differential Microfeed System
Shock and Vibration, 2022 The conventional drive feed system inevitably enters the nonlinear creep region at very low speed. This seriously affects its low-speed performance and tracking accuracy.
Anning Wang +4 more
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Adaptive Terminal Sliding Mode Control of Picking Manipulator Based on Uncertainty Estimation
Actuators, 2022 In this paper, a robust nonsingular fast terminal sliding mode control scheme for the picking manipulator under the condition of load change and nonlinear friction disturbance is presented.
Caizhang Wu, Shijie Zhang
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FEBS Open Bio, EarlyView.The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong +3 more
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IEEE Access, 2020 This brief improves the motion precision of a pump-controlled electrohydraulic actuator with input saturation and heavy friction. A model-based adaptive commander filtering control (CFC) with the integration of an anti-windup auxiliary system and ...
Ning Ye, Jinchun Song, Guangan Ren
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