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Boundary friction model in punch friction test
Journal of Materials Processing Technology, 1994Abstract A boundary friction model which includes both plowing and adhesion stress has been developed to simulate the stretching of sheet over a cylindrical pin boundary regime. The equilibrium equation defining the local frictional shear stress on the workpiece has been combined with the existing friction model to determine fractional contact area ...
Tze-Chi Hsu, Shang-Guey Kuo
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Model-Based Friction Compensation
2004Compensation of nonlinear friction terms is a most challenging application of high resolution encoders, which are nowadays getting available for common industrial motion control and robotic applications. In fact, use of a high resolution sensor allows a neat analysis of the dynamic behavior of friction forces in the presliding regime, and especially of
FERRETTI, GIANNI +2 more
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Adaptive Friction Compensation with Dynamic Friction Model
IFAC Proceedings Volumes, 1996Abstract This paper illustrates the application of model-based adaptive friction compensation schemes on a DC motor servomechanism. A dynamic friction model and the control structure previously studied were used as a basis for this study. Two adaptive globally stable mechanisms are introduced to deal with structured normal forces and temperature ...
C. Canudas-de-Wit, P. Lischinsky
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Friction Models with discrete Layers
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2000AbstractLooking for energy flows inside friction phenomena leads to special formulation of boundary layer in contact regions. The paper presents a local superatom‐discretisation, a special mesoscopic particle approach similar to molecular dynamic techniques, but with respect to thermodynamic laws the particles have inner variables, which indicate ...
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Modeling and compensating friction in power steering
2015 European Control Conference (ECC), 2015Achieving steering feel that is independent from the inherent mechanical friction is a requirement that prevails in modern electric power steering (EPS) development. Friction affects both the vehicle performance (objective) and the steering feel (subjective).
Frédéric Wilhelm +3 more
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Markets with Search Friction and the DMP Model [PDF]
American Economic Review, 2011 Dale T. Mortensen delivered his Prize Lecture on 8 December 2010 at Aula Magna, Stockholm University.(This abstract was borrowed from another version of this item.)
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Single and Multistate Integral Friction Models
IEEE Transactions on Automatic Control, 2004In this note, a single state integral friction model is first proposed, defining separately the Dahl, Stribeck, and microviscous effects. The model is based on an integral closed form solution of the Dahl model. A multistate integral friction model, accounting for the hysteresis behavior with non local memory, has been then derived, combining the Dahl ...
FERRETTI, GIANNI +2 more
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On the Modeling of Dynamic Friction Phenomena
ZAMM, 1999Summary: We propose a low-dimensional dynamic model of frictional interactions by considering microscopic interactions between nominally flat surfaces. Coupling is introduced between the tangential motion and the separation of the surfaces due to the asperity contact between the surfaces.
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Friction of plasticity: Application of the dynamic friction model
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2007There have not been any suitable friction models to properly solve plasticity problems yet. Most recently, a new dynamic friction model merging the definition expression of the viscosity with the Amontons-Coulomb friction model suggested by the author has been successfully applied in axisymmetric upsetting to predict the contact stresses. In this paper,
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Constitutive Equation for Friction: Subloading-Friction Model
2014All bodies in the natural world are exposed to friction phenomena, contacting with other bodies, except for bodies floating in a vacuum. Therefore, it is indispensable to analyze friction phenomena rigorously in addition to the deformation behavior of bodies themselves in analyses of boundary value problems. The friction phenomenon can be formulated as
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