Results 11 to 20 of about 667,141 (301)

A Review of Key Technologies for Friction Nonlinearity in an Electro-Hydraulic Servo System

open access: yesMachines, 2022
In a high-precision servo system, the nonlinear friction link is the key factor affecting the system performance. Reasonable solving of the friction link in servo systems has become a focus of current research.
Bingwei Gao   +4 more
doaj   +1 more source

Friction Modelling in Boundary Lubrication Considering the Effect of MoDTC and ZDDP in Engine Oils

open access: yesTribology Online, 2011
A predictive friction model has been developed in boundary lubrication conditions to understand the sensitivity of the model to molybdenum dithiocarbamate (MoDTC), a friction modifying additive and zinc dialkyldithiophosphate (ZDDP), an antiwear additive
Rupesh Roshan   +6 more
doaj   +1 more source

A prediction model of flat belt slippage considering rigid-slip during power transmission

open access: yesNihon Kikai Gakkai ronbunshu, 2023
The purpose of this study is to propose an effective model for predicting the slip ratio of a belt transmission mechanism during power transmission, considering the different tensile stiffness of the drive belt.
Kiyotaka OBUNAI, Kazuya OKUBO, Ato FUKUO
doaj   +1 more source

Mathematical Model of Linear Motor Stage with Non-Linear Friction Characteristics

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
This paper proposes a mathematical model of a feed drive system consisting of a cylindrical linear motor and linear ball guides. The friction model consists of two components; a model for the relationships between displacement and friction force under ...
Satoshi KANEKO   +2 more
doaj   +1 more source

Skin friction blistering: computer model [PDF]

open access: yesSkin Research and Technology, 2007
Background/purpose: Friction blisters, a common injury in sports and military operations, can adversely effect or even halt performance. Given its frequency and hazardous nature, recent research efforts appear limited. Blistering can be treated as a delamination phenomenon; similar issues in materials science have been extensively investigated in ...
Xing, Malcolm   +3 more
openaire   +5 more sources

Meso–Macro Coupled Analysis of Pressure-Dependent Friction of Rubber

open access: yesFrontiers in Mechanical Engineering, 2020
To deepen the understanding of the frictional sliding phenomena of rough surfaces, advances are required in numerical analysis methods at various spatial scales. In this study, to examine the microscopic behavior of a rough asperity contact corresponding
Shingo Ozaki   +3 more
doaj   +1 more source

A Position-Based Friction Error Model and Its Application to Parameter Identification

open access: yesIEEE Access, 2019
Most existing methods rely on the torque information of a servo drive to predict the tracking error caused by the friction force (friction error), but the torque information is not available in certain systems.
Dailin Zhang   +3 more
doaj   +1 more source

Microscale friction reduction by normal force modulation in MEMS. [PDF]

open access: yes, 2010
Friction in MEMS-scale devices is troublesome because it can result in lateral stiction of two sliding surfaces. We have investigated the effect of modulation of the normal force on the friction between two sliding MEMS surfaces, using a fully MEMS-based
Frenken, Joost W. M.   +3 more
core   +2 more sources

A driven two-dimensional granular gas with Coulomb friction [PDF]

open access: yes, 2005
We study a homogeneously driven granular gas of inelastic hard particles with rough surfaces subject to Coulomb friction. The stationary state as well as the full dynamic evolution of the translational and rotational granular temperatures are ...
Annette Zippelius   +12 more
core   +3 more sources

Modeling and robust control algorithms for a linear belt driven system

open access: yesOpen Computer Science, 2018
This paper proposes the mathematical modeling and robust control algorithms for linear belt system with the help of sliding mode control approach. Due to the elasticity of the belt, the presence of frictions, and the un-modeled dynamics, conventional ...
Minh Vu Trieu, Tamre Mart, Sekhri Even
doaj   +1 more source

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