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Classical Physics papers — page 158

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Measurement Of The Fluid Flow Load On A Globe Valve Stem Under Various Cavitation Conditions
The evaluation of fluid forces on the stem is important for wear prediction of valve and actuator guidance parts. While estimating the axial load is straight forward, estimating and/or measuring the…
Jerome FerrariSep 4, 2009
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Asymmetric Mach-Zehnder fiber interferometer test of the anisotropy of the speed of light
Two optical fiber Mach-Zehnder interferometers were constructed in an environment with a temperature stabilization of better than 1 mK per day. One interferometer with a length of 2 m optical fiber…
Victor de HaanSep 2, 2009
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Self-Excited Vibrations in Turning: Efforts Torsor and Average Friction Coefficient Analysis
An experimental device in turning including, in particular, a six-component dynamometer is exploited to measure the complete torque of cutting forces in a case of self-excited vibrations. For the…
Alain Gérard, Olivier Cahuc, Miron ZapciuSep 2, 2009
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Invisibility Cloaks Modeled by Anisotropic Metamaterials Based on Inductor-capacitor Networks
Based on the transformation optics, a novel transmission-line (TL) approach to realize invisibility cloaking using planar anisotropic metamaterials (MTMs) is proposed. The two-dimensional cylindrical…
Xiao Liu, Chao Li, Kan Yao et al.Sep 1, 2009
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Investigation of a hydraulic impact: a technology in rock breaking
The finite element method and dimensional analysis have been applied in the present paper to study a hydraulic impact, which is utilized in a non-explosive rock breaking technology in mining…
Martin Genet, Wenyi Yan, Thanh Tran-CongAug 28, 2009
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Self-excited vibrations in turning : Forces torsor analysis
The present work deals with determining the necessary parameters considering a three dimensional model to simulate in a realistic way the turning process on machine tool. This paper is dedicated to…
Claudiu-Florinel Bisu, Alain Gérard, Jean-Yves K'Nevez et al.Aug 20, 2009
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Nonlinear viscoelastic wave propagation: an extension of Nearly Constant Attenuation (NCQ) models
Hysteretic damping is often modeled by means of linear viscoelastic approaches such as "nearly constant Attenuation (NCQ)" models. These models do not take into account nonlinear effects…
Nicolas Delépine, Luca Lenti, Guy Bonnet et al.Aug 19, 2009
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Site-City Interaction through Modifications of Site Effects
The analysis of seismic site effects generally disregards the influence of surface structures on the free field motion in densely urbanized areas. This paper aims at investigating this particular…
Jean-François Semblat, Marc Kham, Philippe Guéguen et al.Aug 19, 2009
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Seismic Site Effects for Shallow and Deep Alluvial Basins: In-Depth Motion and Focusing Effect
The main purpose of the paper is the analysis of seismic site effects in various alluvial basins. The analysis is performed considering a numerical approach (Boundary Element Method). Two main cases…
Jean-François Semblat, Patrick Dangla, Marc Kham et al.Aug 19, 2009
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Displacements analysis of self-excited vibrations in turning
The actual research deals with determining by a new protocol the necessary parameters considering a three-dimensional model to simulate in a realistic way the turning process on machine tool. This…
Claudiu-Florinel Bisu, Philippe Darnis, Alain Gérard et al.Aug 19, 2009
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Determination Du Centre De Raideur Pour Les Machines-Outils - Application Au Tournage
The determination of the stiffness center of a machine tool is a major element for knowing the dynamic behavior of this one. This stiffness center can be obtained from a static characterization of…
Claudiu-Florinel Bisu, Jean-Yves K'Nevez, Philippe Darnis et al.Aug 10, 2009
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Lyapunov vs. Geometrical Stability Analysis of the Kepler and the Restricted Three Body Problem
In this letter we show that although the application of standard Lyapunov analysis predicts that completely integrable Kepler motion is unstable, the geometrical analysis of Horwitz et al [1]…
A. Yahalom, J. Levitan, M. Lewkowicz et al.Aug 7, 2009
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Dispersion relation for anisotropic media
The electromagnetic wave propagation in an anisotropic dielectric media with two generic matrices εij and μij of permittivity and permeability is studied. These matrices are not required to…
Yakov ItinAug 6, 2009
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Multi-objective optimization of the dry electric discharge machining process
Dry Electric Discharge Machining (EDM) is an environment-friendly modification of the conventional EDM process, which is obtained by replacing the liquid dielectric by a gaseous medium. In this…
Sourabh Saha, S. K. ChoudhuryAug 4, 2009
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Change of the plane of oscillation of a Foucault pendulum from simple pictures
The change of the plane of oscillation of a Foucault pendulum is calculated without using equations of motion, the Gauss-Bonnet theorem, parallel transport, or assumptions that are difficult to…
Thomas F. Jordan, J. MapsAug 2, 2009
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Experimental study of machining system: dynamic characterization
In the workspace model of machining an experimental procedure is implemented to determine the elastic behaviour of the machining system. In an other work we have proposed a static characterization of…
Miron Zapciu, Olivier Cahuc, Claudiu-Florinel Bisu et al.Aug 2, 2009
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The falling raindrop, revisited
I reconsider the problem of a raindrop falling through mist, collecting mass, and generalize it to allow an arbitrary power-law form for the accretion rate. I show that the coupled differential…
Alan D. SokalAug 1, 2009
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Gas damping force noise on a macroscopic test body in an infinite gas reservoir
We present a simple analysis of the force noise associated with the mechanical damping of the motion of a test body surrounded by a large volume of rarefied gas. The calculation is performed…
A. Cavalleri, G. Ciani, R. Dolesi et al.Jul 30, 2009
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How to Complete the Description of Physical Reality by Non-local Hidden Variables?
Which non-local hidden variables could complement the description of physical reality? The present model of extended Newtonian dynamics (MEND) is generalize but not alternative to Newtonian Dynamics…
Timur F. KamalovJul 30, 2009
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A classification of classical billiard trajectories
We examine the possible trajectories of a classical particle, trapped in a two-dimensional infinite rectangular well, using the Hamilton-Jacobi equation. We observe that three types of trajectories…
Bijan Bagchi, Atreyee SinhaJul 28, 2009
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Boussinesq Systems of Bona-Smith Type on Plane Domains: Theory and Numerical Analysis
We consider a class of Boussinesq systems of Bona-Smith type in two space dimensions approximating surface wave flows modelled by the three-dimensional Euler equations. We show that various…
Vassilios Dougalis, Dimitrios Mitsotakis, Jean-Claude SautJul 28, 2009
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Thomas rotation and Mocanu paradox -- not at all paradoxical
Non-commutativity of the Einstein velocity addition, in case of non-collinear velocities, seemingly gives rise to a conflict with reciprocity principle. However, Thomas rotation comes at a rescue and…
Z. K. SilagadzeJul 26, 2009
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Oscillating horizontal bar problem revisited
A simple text book problem in mechanicsklep, describes a massive horizontal bar placed on two oppositely rotating rollers, kept at a fixed center to center distance. Subsequent motion is to be…
Anindya Kumar BiswasJul 20, 2009
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Self force on a point-like source coupled with massive scalar field
The problem of determining the radiation reaction force experienced by a scalar charge moving in flat spacetime is investigated. A consistent renormalization procedure is used, which exploits the…
Yurij YaremkoJul 17, 2009
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Radiation reaction in 2+1 electrodynamics
A self-action problem for a pointlike charged particle arbitrarily moving in flat spacetime of three dimensions is considered. Outgoing waves carry energy-momentum and angular momentum; the radiation…
Yurij YaremkoJul 17, 2009
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