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Classical Physics papers — page 163

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A Short Foucault Pendulum Free of Ellipsoidal Precession
A quantitative method is presented for stopping the intrinsic precession of a spherical pendulum due to ellipsoidal motion. Removing this unwanted precession renders the Foucault precession due to…
Reinhard A. Schumacher, Brandon TarbetFeb 11, 2009
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Steady State of a Dissipative Flow-Controlled System and the Maximum Entropy Production Principle
A theory to predict the steady state position of a dissipative, flow-controlled system, as defined by a control volume, is developed based on the Maximum Entropy (MaxEnt) principle of Jaynes,…
Robert K. NivenFeb 10, 2009
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Radiation pressure on a dielectric boundary: was Poynting wrong?
When a plane electromagnetic wave in air falls on a flat dielectric boundary, the dielectric body is pulled toward the air as predicted by Poynting a century ago. According to Noether's theorem,…
A. Hirose, R. DickFeb 10, 2009
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Ground-Plane Quasi-Cloaking for Free Space
Ground-plane cloak designs are presented, which minimize scattering of electromagnetic radiation from metallic objects in the visible spectrum. It is showed that simplified ground-plane cloaks made…
Efthymios Kallos, Christos Argyropoulos, Yang HaoFeb 10, 2009
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Dynamics of nano tippe top
We investigate the motion of a nano tippe top, which is formed from a C60 fullerene, and which is assumed to be spinning on either a graphene sheet or the interior of a single-walled carbon nanotube.…
Yue Chan, Ngamta Thamwattana, James M. HillFeb 9, 2009
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Multiple Resonances in Fluid-Loaded Vibrating Structures
This study deals with spectral analysis of fluid-loaded vibrating structure. It was recently observed in a numerical study on a high order perturbation method under heavy fluid loading that a loaded…
Pierre-Olivier MatteiFeb 5, 2009
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Analytical study of the propagation of acoustic waves in a 1D weakly disordered lattice
This paper presents an analytical approach of the propagation of an acoustic wave through a normally distributed disordered lattice made up of Helmholtz resonators connected to a cylindrical duct.…
Olivier Richoux, E. Morand, L. SimonFeb 4, 2009
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Energetic Versus Sthenic Optimality Criteria for Gymnastic Movement Synthesis
Dynamic synthesis of human movements raises the question of the selection of a suitable performance criterion able to generate proper dynamic behaviors. Two quite different criteria are likely to be…
Fabien Leboeuf, Guy Bessonnet, Pascal Seguin et al.Feb 4, 2009
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Numerical-analytical Algorithm for Constructing the Envelope of the Projectile Trajectories in Midair
A classic problem of the motion of a point mass (projectile) thrown at an angle to the horizon is reviewed. The air drag force is taken into account with the drag factor assumed to be constant. An…
Peter S ChudinovFeb 3, 2009
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Symmetry Properties of Electromagnetic Field in the Matter
The sets Φ(Fμν), Φ( Fμν) of linear functionals on the space < F,+,· > represent themself linear space < Φ,+,· > over the field of scalars P, which is dual…
D. Yearchuck, A. AlexandrovFeb 1, 2009
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Spherical volume averages of static electric and magnetic fields using Coulomb and Biot-Savart laws
We present derivations of the expressions for the spherical volume averages of static electric and magnetic fields that are virtually identical. These derivations utilize the Coulomb and Biot-Savart…
Ben Yu-Kuang HuJan 31, 2009
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Understanding the special theory of relativity
This paper constitutes a background to the paper 'Quantum mechanics as "space-time statistical mechanics"?', arXiv:quant-ph/0501133, presented previously by the author. But it is also…
Anders MånssonJan 29, 2009
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About the intuitive picture of a Hamiltonian for a dissipative system
A Hamiltonian for a one-dimensional (1-D) dissipative system is given which shows that the trajectories in the spaces (x, x) and (x,p) are completely different. The trajectory in the space…
G. V. LopezJan 29, 2009
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Discrete numerical simulation, quasistatic deformation and the origins of strain in granular materials
Systematic numerical simulations of model dense granular materials in monotonous, quasistatic deformation reveal the existence of two different régimes. In the first one, the macroscopic strains stem…
Gaël Combe, Jean-Noël RouxJan 24, 2009
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Numerical analysis of seismic wave amplification in Nice (France) and comparisons with experiments
The analysis of site effects is very important since the amplification of seismic motion in some specific areas can be very strong. In this paper, the site considered is located in the centre of Nice…
Jean-François Semblat, Anne-Marie Duval, Patrick DanglaJan 24, 2009
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On Newton's Third Law
The law of action-reaction is thoroughly used in textbooks to derive the conservation laws of linear and angular momentum, and it was considered by Ernst Mach the the cornerstone of physics. We give…
Mario J. PinheiroJan 23, 2009
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Wave propagation through soils in centrifuge testing
Wave propagation phenomena in soils can be experimentally simulated using centrifuge scale models. An original excitation device (drop-ball arrangement) is proposed to generate short wave trains.…
J. F. Semblat, M. P. LuongJan 23, 2009
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Rheological Interpretation of Rayleigh Damping
Damping is defined through various terms such as energy loss per cycle (for cyclic tests), logarithmic decrement (for vibration tests), complex modulus, rise-time or spectrum ratio (for wave…
Jean-François SemblatJan 23, 2009
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3D Hopkinson bar: new experiments for dynamic testing on soils
The direct analysis of the dynamic response of materials is possible using Split Hopkinson pressure bar method. For soils, it has to be adapted since the specimen has generally poor mechanical…
J. F. Semblat, M. P. Luong, G. GaryJan 23, 2009
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Efficiency of Higher Order Finite Elements for the Analysis of Seismic Wave Propagation
The analysis of wave propagation problems in linear damped media must take into account both propagation features and attenuation process. To perform accurate numerical investigations by the finite…
Jean-François Semblat, J. J. BrioistJan 23, 2009
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A Simple and Efficient Regularization Method for 3D BEM: Application to Frequency-Domain Elastodynamics
An efficient and easy-to-implement method is proposed to regularize integral equations in the 3D boundary element method (BEM). The method takes advantage of an assumed three-noded triangle…
Patrick Dangla, Jean-François Semblat, H. Xiao et al.Jan 23, 2009
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Seismic site effects in a deep alluvial basin: numerical analysis by the boundary element method
The main purpose of the paper is the numerical analysis of seismic site effects in Caracas (Venezuela). The analysis is performed considering the boundary element method in the frequency domain. A…
Jean-François Semblat, Anne-Marie Duval, Patrick DanglaJan 23, 2009
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Simulation nnnumérique discrète et comportement mécanique des matériaux granulaires
As a complementary tool to laboratory experiments, discrete numerical simulation, applied to granular materials, provides valuable information on the grain and contact scale microstructure, thereby…
Jean-Noël Roux, François ChevoirJan 22, 2009
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From least action in electrodynamics to magnetomechanical energy -- a review
The equations of motion for electromechanical systems are traced back to the fundamental Lagrangian of particles and electromagnetic fields, via the Darwin Lagrangian. When dissipative forces can be…
Hanno EssenJan 21, 2009
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Sound wave velocities in dry and lubricated granular packings packings: numerical simulations and experiments
Numerical simulations are used to investigate the origins of the different wave velocities measured in dense granular samples assembled with different methods. Glass bead packings are prepared in the…
Ivana Agnolin, Jean-Noël Roux, Pascal Massaad et al.Jan 20, 2009
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