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Polarization Clouds and Dynamical Friction
Astrophysics and Space Science, 1971We argue that dynamical friction can be viewed as the drag exerted on a ‘test’ star by the wake it induces in the field stars. We compute the wakes for the uniform infinite medium and a flat rotating sheet. In the first case we obtain a result which differs by a factor of two from the classical result. In the second case the drag vanishes.
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The Dynamics of the Onset of Frictional Slip
Science, 2010Slip Sliding Away The initiation of frictional motion, or slip, along ideal surfaces typically behaves as predicted by rupture models. When stress heterogeneities—similar to irregularities in fault zones in Earth's crust—are introduced, rupture propagation speeds are not as well constrained by models.
Oded, Ben-David +2 more
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Dynamic friction in the control of robots
Proceedings of the 1994 IEEE International Conference on Robotics and Automation, 2002Frictional memory is a delay between a change in sliding velocity or normal force and the consequent change in friction. Several sensitive studies of frictional dynamics have shown the presence of frictional memory in tribology experiments and in robots.
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Conflicts and Friction in Pedestrian Dynamics
2008"Conflicts" occur generically in particle-hopping models with parallel dynamics when multiple occupation of sites is forbidden. For cellular automata models of pedestrian dynamics we argue that such conflicts represent an important aspect of the real dynamics.
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A Theory of Dynamic Rubber Friction
Rubber Chemistry and Technology, 1963Abstract Assuming dynamic friction to arise from the shearing and subsequent breaking of distinct bonds between the rubbing members, a general equation is derived for the frictional force which involves the number and average life of the bonds as well as the average time lag between breaking and re-making of a bond at a given site.
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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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Investment Frictions and Leverage Dynamics
SSRN Electronic Journal, 2006I examine the effect of investment frictions on leverage dynamics, using a model of the firm whose investments are 1) indivisible and lumpy, and 2) subject to time-to-build, which is a time lag between when investment expenditures are made and when the investment begins to generate cash.
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Molecular dynamics simulations of friction
2000no ...
Chantrenne, Patrice +4 more
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