Results 101 to 110 of about 1,926 (224)

Numerical modeling of magneto-rheological dampers [PDF]

, 2013
Entre as diferentes estratégias disponíveis para controlar vibrações em engenharia, o controlo semi-activo com base em amortecedores magnetoreológico (MR) tornaram-se uma tecnologia promissora para ser utilizada em estruturas de engenharia civil.
Barros, Rui, Braz-César, M.T.
core  

MODELING AND SIMULATION OF SINGLE LOOP PLANETARY TRANSMISSION SYSTEM BASED ON BOND GRAPH THEORY

Jixie qiangdu, 2017
Based on bond graph theory,considering the time-varying meshing stiffness,damping and tooth surface friction force of internal and external gear,using LuGre friction model,the bond graph model of NGW type planetary gear was established. And then,the bond
ZHANG BaoFeng, CUI YaHui, ZHANG An, LIU Kai, GUO Kun   +4 more
doaj  

Model generation and parametric study of stick-slip induced vibration for mechanics under friction

Journal of Low Frequency Noise, Vibration and Active Control
As friction is inherently nonlinear, simulating its dynamics in a system is never an easy process. The study suggests a novel friction model that mimics the stiction friction model using sigmoid and exponential functions. The friction force value at 0.01 
Jitendra Yadav, Roushan Kumar, Adesh Kumar, Brijesh Gangil, Lalit Ranakoti, Shubham Sharma, Kuldeep Sharma, Rakesh Kumar, S Rajkumar, Krishnaraj Ramaswamy   +9 more
doaj   +1 more source

Motion stabilization in the presence of friction and backlash: a hybrid system approach [PDF]

, 2008
In this paper a hybrid system approach is considered to deal with backlash and friction induced nonlinearities in mechanical control systems. To describe the low velocity frictional behaviour a linearized friction model is proposed. The novelty of this
Lantos, Béla, Márton, Lőrinc
core  

Actuator Fault-Tolerant Control of Anthropomorphic Manipulator Using Adaptive Backstepping and Neural Estimation of LuGre Friction Torque

Machines
This paper presents a fault-tolerant control (FTC) strategy for a six-degree-of-freedom (DoF) anthropomorphic manipulator operating under actuator faults and complex friction dynamics.
Khurram Ali, Khurram Shehzad, Sikender Gul, Syed Ali Ajwad, Adeel Mehmood   +4 more
doaj   +1 more source

Bilan et enjeux des modèles de frottements : tribologie et contrôle au service de la sécurité des transports [PDF]

, 2006
National audienceCe document se veut une aide à la conception (dimensionnement, mesures, commande, supervision) des systèmes de transport (routiers, ferroviaires, ...) dans le cadre des nouveaux enjeux de performance et de sécurité. Dans ce contexte, les
Nuninger, Walter, Perruquetti, Wilfrid, Richard, Jean-Pierre   +2 more
core   +1 more source

Backstepping Adaptive Fuzzy Control of Servo System With LuGre Friction

MATEC Web of Conferences, 2017
Aiming at the control problem of servo system with friction nonlinearity, we introduced the improved LuGre friction model of system. We used adaptive fuzzy system to approximate the nonlinear part and unknown parameters in system online.
Zhao Haibo, Wang Chengguang
doaj   +1 more source

Integrated Controller Design and Application for CNC Machine Tool Servo Systems Based on Model Reference Adaptive Control and Adaptive Sliding Mode Control. [PDF]

Sensors (Basel), 2023
Zhang T, Li X, Gai H, Zhu Y, Cheng X.
europepmc   +1 more source

Influence of two kinds of clearance joints on the dynamics of planar mechanical system based on a modified contact force model. [PDF]

Sci Rep, 2023
Tan H, Li L, Huang Q, Jiang Z, Li Q, Zhang Y, Yu D.   +6 more
europepmc   +1 more source

An Improved Parameter Identification Algorithm for the Friction Model of Electro-Hydraulic Servo Systems. [PDF]

Sensors (Basel), 2023
Liao J, Zhou F, Zheng J.
europepmc   +1 more source