Results 11 to 20 of about 2,236,967 (290)

Intelligent Flow Friction Estimation. [PDF]

open access: yesComput Intell Neurosci, 2016
Nowadays, the Colebrook equation is used as a mostly accepted relation for the calculation of fluid flow friction factor. However, the Colebrook equation is implicit with respect to the friction factor (λ). In the present study, a noniterative approach using Artificial Neural Network (ANN) was developed to calculate the friction factor.
Brkić D, Ćojbašić Ž.
europepmc   +7 more sources

Sensorless force estimation of end-effect upper limb rehabilitation robot system with friction compensation

open access: yesInternational Journal of Advanced Robotic Systems, 2019
In human robot interaction systems, human intent detection plays an important role to improve the interactive performances and then the rehabilitation effects. A study is proposed to estimate the interactive forces that indirectly detect the human motion
Xiangxing Liu   +3 more
doaj   +2 more sources

Understanding the friction between human fingers and contacting surfaces [PDF]

open access: yes, 2009
Friction tests were carried out to assess the friction between a human finger and contacting surface, in different conditions. Tests examined the effect of normal force, the area of contact, the effect of triangular and rectangular cross-section ...
Tomlinson, Sarah Elizabeth
core   +6 more sources

Modeling and estimation of internal friction in cloth [PDF]

open access: yesACM Transactions on Graphics, 2013
Force-deformation measurements of cloth exhibit significant hysteresis, and many researchers have identified internal friction as the source of this effect. However, it has not been incorporated into computer animation models of cloth. In this paper, we propose a model of internal friction based on an augmented reparameterization of Dahl's model, and ...
Eder Miguel   +8 more
openaire   +3 more sources

Moving horizon for friction state and parameter estimation [PDF]

open access: yes2013 European Control Conference (ECC), 2013
Efficient on-line state and parameter estimation is essential for model-based friction compensation in order to track changes of friction characteristics in time and space. This paper presents a moving horizon estimation (MHE) algorithm for on-line friction state and parameter estimation using a smoothed (analytic) version of the Generalized Maxwell ...
Boegli, Max   +3 more
  +11 more sources

Velocity estimation (a) and torque and friction coefficient estimation (b).

open access: yes, 2022
Velocity estimation (a) and torque and friction coefficient estimation (b).
Huibin Hu (12621651)   +4 more
core   +1 more source

Hybrid Kinematic-Dynamic Sideslip and Friction Estimation [PDF]

open access: yes, 2023
Vehicle sideslip and tyre/road friction are crucial variables for advanced vehicle stability control systems. Estimation is required since direct measurement through sensors is costly and unreliable.
Carnier, S   +5 more
core   +1 more source

On Input Market Frictions and Estimation of Factors' Demand [PDF]

open access: yesSouthern Economic Journal, 2011
In this article, we explore the impact of imperfectly competitive input markets on production function estimation. First‐order profit‐maximizing conditions are altered when frictions in input markets cause the elasticity of input supply to the firm to be finite.
Arnaud Dupuy, Todd Sorense
openaire   +6 more sources

Investigation of asphalt texture roughness on friction evolution for wheeled vehicles

open access: yesTransport, 2016
Novelty of the research lies in understanding the safety advantages of asphalt made using advanced pavement design process – compact asphalt pavement installation.
Laurencas Raslavičius   +4 more
doaj   +1 more source

Survey on Modelling and Techniques for Friction Estimation in Automotive Brakes

open access: yesApplied Sciences, 2017
The increased use of disc brakes in passenger cars has led the research world to focus on the prediction of brake performance and wear under different working conditions. A proper model of the brake linings’ coefficient of friction (BLCF) is important to
Vincenzo Ricciardi   +4 more
doaj   +1 more source

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