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Classical Physics papers — page 179

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Elastoplastic equations with exact consistency of strains for the elastic strain frame and the velocities of points
We obtain an exact strain consistency equation for full, elastic, and plastic strain characteristics that have a clear physical meaning and are naturally related to stresses. The dynamic equations…
Israel Solomeshch, Motel SolomeshchFeb 11, 2007
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Force transmission in a packing of pentagonal particles
We perform a detailed analysis of the contact force network in a dense confined packing of pentagonal particles simulated by means of the contact dynamics method. The effect of particle shape is…
Émilien Azema, Farhang Radjai, Robert Peyroux et al.Feb 6, 2007
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Entrainment and stimulated emission of auto-oscillators in an acoustic cavity
We report theory, measurements and numerical simulations on nonlinear piezoelectric ultrasonic devices with stable limit cycles. The devices are shown to exhibit behavior familiar from the theory of…
Richard L Weaver, Oleg I Lobkis, Alexey YamilovFeb 5, 2007
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Rocking and rolling: a can that appears to rock might actually roll
A beer bottle or soda can on a table, when slightly tipped and released, falls to an upright position and then rocks up to a somewhat opposite tilt. Superficially this rocking motion involves a…
Manoj Srinivasan, Andy RuinaFeb 4, 2007
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On the electromagnetic momentum of static charge and steady current distributions
Faraday's and Furry's formulas for the electromagnetic momentum of static charge distributions combined with steady electric current distributions are generalised in order to obtain full…
Andre GsponerFeb 2, 2007
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An Application of Reversible Entropic Dynamics on Curved Statistical Manifolds
Entropic Dynamics (ED) is a theoretical framework developed to investigate the possibility that laws of physics reflect laws of inference rather than laws of nature. In this work, a RED (Reversible…
Carlo Cafaro, S. A. Ali, Adom GiffinFeb 1, 2007
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Study of a Plane Free Jet Exhausting from a Channel by Vortex in Cell Method
A two-dimensional simulation of a plane jet exhausting from a channel has been performed using the vortex in cell algorithm in the Reynolds number range of 100 to 900. The vorticity is generated on…
Mohamed Ali Knani, Henri-Claude Boisson, André Giovannini et al.Jan 30, 2007
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Maximum power, ecological function and efficiency of an irreversible Carnot cycle. A cost and effectiveness optimization
In this work we include, for the Carnot cycle, irreversibilities of linear finite rate of heat transferences between the heat engine and its reservoirs, heat leak between the reservoirs and internal…
G Aragon-Gonzalez, A. Canales-Palma, A. Leon-Galicia et al.Jan 29, 2007
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Floating Bodies of Equilibrium in 2D, the Tire Track Problem and Electrons in a Parabolic Magnetic Field
Explicit solutions of the two-dimensional floating body problem (bodies that can float in all positions) for relative density different from 1/2 and of the tire track problem (tire tracks of a…
Franz J. WegnerJan 22, 2007
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On the geometry of Hamiltonian chaos
We show that Gutzwiller's characterization of chaotic Hamiltonian systems in terms of the curvature associated with a Riemannian metric tensor in the structure of the Hamiltonian can be extended…
Lawrence Horwitz, Jacob Levitan, Meir Lewkowicz et al.Jan 18, 2007
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Adhesive Contact to a Coated Elastic Substrate
We show how the quasi-analytic method developed to solve linear elastic contacts to coated substrates (Perriot A. and Barthel E. J. Mat. Res., 2004, 19, 600) may be extended to…
Etienne Barthel, Antoine PerriotJan 16, 2007
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Enhanced functions supporting process planning for aircraft structural parts
Aiming at automating the different trades intervening in mechanical parts' design activities, one finds the weakest link within the interface linking the computer aided-design trade (CAD) and the…
Ramy Harik, Vincent Capponi, Muriel Lombard et al.Jan 11, 2007
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MaxEnt Mechanics
This paper shows that: (a) given a mechanical system described by a set of independent coordinates in configuration space, (b) given an initial state of specified initial coordinates, and (c) given a…
Jean-Bernard BrissaudJan 10, 2007
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A simple guide to determine elastic properties of films on substrate from nanoindentation experiments
This submission has been removed by arXiv administration because it was submitted in violation of copyright by HAL.
Sandrine Bec, André Tonck, Jean-Luc LoubetJan 10, 2007
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Nanoindentation and nanofriction on DLC films
This submission has been removed by arXiv administration because it was submitted in violation of copyright by HAL.
Sandrine Bec, André Tonck, Julien FontaineJan 10, 2007
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Classical Analytical Mechanics and Entropy Production
The usual canonical Hamiltonian or Lagrangian formalism of classical mechanics applied to macroscopic systems describes energy conserving adiabatic motion. If irreversible diabatic processes are to…
J. Silverberg, A. WidomJan 8, 2007
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Laboratory experiments on the generation of internal tidal beams over steep slopes
We designed a simple laboratory experiment to study internal tides generation. We consider a steep continental shelf, for which the internal tide is shown to be emitted from the critical point, which…
Louis Gostiaux, Thierry DauxoisJan 8, 2007
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Response of an impacting hertzian contact to an order-2 subharmonic excitation : theory and experiments
Response of a normally excited preloaded Hertzian contact is investigated in order to analyze the subharmonic resonance of order 2. The nonlinearity associated with contact losses is included. The…
Joël Perret-Liaudet, Emmanuel RigaudJan 5, 2007
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Gearboxes: indirect identification of dynamic forces transmitted to housing through bearings
In order to determine indirectly the generalized forces applied on the gearbox, two approaches are tested, one is a numerical method, the other is experimental. For the numerical method, the…
Gu Xiang Zhang, Emmanuel Rigaud, Jean-Claude Pascal et al.Jan 5, 2007
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Variability of Critical Rotational Speeds of Gearbox by Misalignement and Manufacturing Errors
Noise measurement on a population of gearbox manufactured in large number often reveals high variability due to tolerances on each gear design parameter (manufacturing errors). Gearbox noise results…
N. Driot, Emmanuel Rigaud, Joël Perret-LiaudetJan 5, 2007
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Coupled computation of meshing and bearings stiffnesses : effect on radiated gearbox noise
This study focus on the acoustical behavior of gearbox induced by the static transmission error under load (STE). An original method is developed allowing to compute simultaneously STE, meshing and…
François Mayeux, Joël Perret-Liaudet, Emmanuel RigaudJan 4, 2007
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Dispersion of critical rotational speeds of gearbox: effect of bearings stiffnesses
Noise measurement on a population of a gearbox manufactured in large number reveals a high variability principally due to tolerances on each design parameter of the gear. Gearbox noise results mainly…
François Mayeux, Emmanuel Rigaud, Joël Perret-LiaudetJan 4, 2007
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Résonance 2-surharmonique d'un contact unilatéral hertzien : approches théorique et expérimentale
For a preloaded impact oscillator under superharmonic excitation of order 2, the Hertzian non linearity constitutes the precursor of vibroimpacts established over a wide frequency range. The…
Joël Perret-Liaudet, Emmanuel RigaudJan 4, 2007
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Modélisation et analyse de l'erreur statique de transmission d'un engrenage. Influence des déformations des roues et interactions entre les couples de dents en prise
We have developped a numerical tool in order to predict vibratory excitation of a gearbox induced by the meshing process. We propose a method based on a 3D Finite Element modelling of each toothed…
Emmanuel Rigaud, Denis BardayJan 4, 2007
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Influence de l'élasticité des lignes d'arbres, des roulements et du carter sur les vitesses critiques de rotation d'une transmission par engrenages
The dynamic behaviour of a gearbox fitted out with a helical gear pair is studied. Shafts, bearings and housing are discretised using the finite element method. The elastic coupling between the…
Emmanuel Rigaud, Jean SabotJan 4, 2007
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