Results 11 to 20 of about 14,180,617 (194)

Revisiting the LuGre friction model [PDF]

open access: yesIEEE Control Systems, 2008
International audienceIn this article we first review properties of the LuGre model, including zero-slip displacement, invariance, and passivity. An extension to include velocity-dependent microdamping is also discussed.
K. J. Astrom, C. Canudas-de-Wit
semanticscholar   +4 more sources

3D projection of the LuGre friction model adapted to varying normal forces [PDF]

open access: yesMultibody system dynamics, 2022
In this paper, we develop an adaptation of the LuGre friction model so as to allow the development of the friction force and its application in any directions on systems subjected to varying normal forces.
L. Colantonio   +3 more
semanticscholar   +2 more sources

Two-Axis Optoelectronic Stabilized Platform Based on Active Disturbance Rejection Controller with LuGre Friction Model

open access: yesElectronics, 2023
To realize the stable tracking control of the optoelectronic stabilized platform system under nonlinear friction and external disturbance, an active disturbance rejection controller (ADRC) with friction compensation is proposed to improve the target ...
Xueyan Hu   +3 more
semanticscholar   +2 more sources

Experimental comparison of five friction models on the same test-bed of the micro stick-slip motion system [PDF]

open access: yesMechanical Sciences, 2015
The micro stick-slip motion systems, such as piezoelectric stick-slip actuators (PE-SSAs), can provide high resolution motions yet with a long motion range. In these systems, friction force plays an active role.
Y. F. Liu   +4 more
doaj   +1 more source

Friction Parameters Estimation of the Line-of-Sight Stabilization System on Temperature Variation [PDF]

open access: yes한국정밀공학회지, 2019
The objective of this study was to address the parameter estimation of the line-of-sight stabilization system on temperature variation, which is a significant element in regulating the control performance of mobile platform with visual targeting system ...
KyungSoo Kim, Hak Yi, SangRyong Lee
doaj   +1 more source

A Second-Order Dynamic Friction Model Compared to Commercial Stick–Slip Models

open access: yesModelling, 2023
Friction has long been an important issue in multibody dynamics. Static friction models apply appropriate regularization techniques to convert the stick inequality and the non-smooth stick–slip transition of Coulomb’s approach into a continuous and ...
Georg Rill, Matthias Schuderer
doaj   +1 more source

Effects of friction models on simulation of pneumatic cylinder [PDF]

open access: yesMechanical Sciences, 2019
This study examines effects of three friction models: a steady-state friction model (SS model), the LuGre model (LG model), and the revised LuGre model (RLG model) on the motion simulation accuracy of a pneumatic cylinder.
X. B. Tran   +3 more
doaj   +1 more source

Bifurcation analysis of a wheel‐slip control loop under low wheel‐slip regulation considering time‐delay

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 23, Issue 2, October 2023., 2023
Abstract Safety and efficiency are key aspects of research and development in the automotive industry, especially in the field of safety‐critical subsystems, such as brake systems. The effect of time delay arise in brake systems, this adverse effect can cause performance degradations or make the brake system unstable.
Ádám Horváth, Péter Béda
wiley   +1 more source

A refined anti‐disturbance control method for gimbal servo systems subject to multiple disturbances under constraints

open access: yesIET Control Theory &Applications, Volume 17, Issue 10, Page 1430-1442, July 2023., 2023
This paper proposes a refined anti‐disturbance control method to deal with velocity output constraints and multiple disturbances. The gimbal's maximum velocity is precisely limited to a pre‐specified low range, which benefits the CMG's lifespan and performance.
Yangyang Cui   +3 more
wiley   +1 more source

Adaptive Neural Backstepping Control for Harmonic Drive System Based on Modified LuGre Friction Model

open access: yesIEEE 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
semanticscholar   +1 more source

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