Results 81 to 90 of about 1,926 (224)

A Novel Dynamic Modeling Framework for Flexure Mechanism-Based Piezoelectric Stick–Slip Actuators with Integrated Design Parameter Analysis

open access: yesMachines
This paper presents an enhanced pseudo-rigid body model (PRBM) integrated with the LuGre friction law to analyze the dynamic behavior of flexure-hinge-based piezoelectric stick–slip actuators (PSSAs).
Xuan-Ha Nguyen, Duc-Toan Nguyen
doaj   +1 more source

Adaptive Barrier Control for Nonlinear Servomechanisms with Friction Compensation

open access: yesComplexity, 2018
This paper proposes an adaptive barrier controller for servomechanisms with friction compensation. A modified LuGre model is used to capture friction dynamics of servomechanisms. This model is incorporated into an augmented neural network (NN) to account
Shubo Wang   +3 more
doaj   +1 more source

Friction compensation of servo system based on terminal switching function

open access: yesThe Journal of Engineering, 2013
Based on the LuGre friction model, a sliding mode adaptive controller is presented to compensate for the friction in the servo system. The terminal switching function is selected as the sliding mode surface, which can make the error of the system ...
Xue Lin, Zhonghua Wang
doaj   +1 more source

Friction Compensation of the Pendubot based on the LuGre Model

open access: yesThe Transactions of The Korean Institute of Electrical Engineers, 2011
This paper proposes a method to reduce the limit cycle phenomenon that appears in the steady-state response of a pendubot system, when it is controlled by a state feedback controller based on the linearized system model. For this, we employed the compensator which estimates the friction based on the LuGre model in the LQR control.
Myung-Whan Eom   +2 more
openaire   +2 more sources

Nonlinear and hysteretic modelling of magnetorheological elastomer base isolator using adaptive neuro-fuzzy inference system [PDF]

open access: yes, 2016
Magnetorheological elastomer (MRE) base isolator is a semi-active control device which has currently obtained increasing attention in the field of vibration control of civil structures.
Gu, X   +5 more
core   +1 more source

Spatial revolute joints with clearance and friction for dynamic analysis of multibody mechanical systems [PDF]

open access: yes, 2016
A study on the effects of dry spatial revolute joints with clearance and friction is delivered through this work. Both radial and axial clearances are taken into consideration which makes the model more realistic for three-dimensional motion.
Flores, Paulo   +5 more
core  

Model of tactile sensors using soft contacts and its application in robot grasping simulation [PDF]

open access: yes, 2013
In the context of robot grasping and manipulation, realistic dynamic simulation requires accurate modeling of contacts between bodies and, in a practical level, accurate simulation of touch sensors.
Korkealaakso, Pasi   +3 more
core   +1 more source

Friction compensation in TP model form - Aeroelastic wing as an example system [PDF]

open access: yes, 2015
The aim of this paper is to fit the friction compensation problem in the field of modern polytopic and Linear Matrix Inequality (LMI) based control design methodologies.
Baranyi, Péter Zoltán, Takarics, Béla
core  

Are there reliable constitutive laws for dynamic friction? [PDF]

open access: yes, 2015
Structural vibration controlled by interfacial friction is widespread, ranging from friction dampers in gas turbines to the motion of violin strings. To predict, control or prevent such vibration, a constitutive description of frictional interactions is ...
McKay, Andrew   +2 more
core   +4 more sources

Adaptive Backstepping Control for Battery Pole Strip Mill Systems with Friction and Dead-Zone Input Nonlinearities

open access: yesActuators
The dead-zone input and hydraulic cylinder friction of the pump-controlled automatic gauge control (AGC) system introduce significant challenges to the high-precision rolling of lithium battery pole pieces.
Gengting Qiu   +4 more
doaj   +1 more source

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