Results 51 to 60 of about 1,926 (224)

Observer-Based Backstepping Adaptive Force Control of Electro-Mechanical Actuator with Improved LuGre Friction Model

open access: yesAerospace, 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
doaj   +1 more source

Observer based friction cancellation in mechanical systems [PDF]

open access: yes, 2014
Ankara : The Department of Electrical and Electronics Engineering and The Graduate School of Engineering and Science of Bilkent University, 2014.Thesis (Master's) -- Bilkent University, 2014.Includes bibliographical references leaves 55-58.In real life ...
Odabaş, Caner
core   +1 more source

Modelling and analysis of dynamic frictional interactions of vibro-driven capsule systems with viscoelastic property [PDF]

open access: yes, 2019
This paper studies the dynamic frictional interactions of the underactuated vibro-driven capsule systems with the viscoelastic property. Frictional dynamics of the capsule systems is an active research domain, while the online implementation and control ...
Cang, Shuang   +2 more
core   +3 more sources

Characterization of Fuel Rods Supported by Dimple‐Less Spacer Grids and Subjected to Nonlinear Vibrations

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari   +3 more
wiley   +1 more source

High-Fidelity Fin–Actuator System Modeling and Aeroelastic Analysis Considering Friction Effect

open access: yesApplied Sciences, 2021
Both the dynamic characteristics and structural nonlinearities of an actuator will affect the flutter boundary of a fin–actuator system. The actuator models used in past research are not universal, the accuracy is difficult to guarantee, and the ...
Jin Lu, Zhigang Wu, Chao Yang
doaj   +1 more source

Minor loops of the Dahl and LuGre models [PDF]

open access: yes, 2018
PreprintHysteresis is a special type of behavior encountered in physical systems: in a hysteretic system, when the input is periodic and varies slowly, the steady-state part of the output-versus-input graph becomes a loop called hysteresis loop.
Ikhouane, Fayçal   +2 more
core   +1 more source

Position Transmission Control in Tendon–Sheath Mechanisms: A Critical Review and a Promising Solution

open access: yesSmartBot, EarlyView.
Tendon‐sheath mechanisms are widely used in various robotic systems for remote position transmission, including aerospace vehicles, flexible rescue robots, dexterous robotic hands, exoskeleton robots, soft wearable devices, industrial robots, and flexible surgical robots.
Jiaqi Li, Qian Gao
wiley   +1 more source

Full- and Reduced-order Model of Hydraulic Cylinder for Motion Control [PDF]

open access: yes, 2017
This paper describes the full- and reduced-order models of an actuated hydraulic cylinder suitable for system dynamics analysis and motion control design.
Ruderman, Michael
core   +2 more sources

A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 1, March 2026.
ABSTRACT Clinching is a widely adopted joining technique in the automotive industry, enabling the fabrication of lightweight structures from dissimilar sheet materials. Accurate prediction of the fatigue life of clinched joints is essential for ensuring structural safety and minimizing development costs.
Chin Chen   +2 more
wiley   +1 more source

Model-Based Adaptive Command Filtering Control of an Electrohydraulic Actuator With Input Saturation and Friction

open access: yesIEEE 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
doaj   +1 more source

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