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Classical Physics papers — page 31

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Optimizing helical disc dynamo
We present an optimized design of our recently realized helical disc dynamo. Like the original set-up, the optimized dynamo consists of a flat multi-arm spiral coil and a co-axially placed disc which…
J. Priede, R. A. Avalos-ZúñigaJun 8, 2023
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Lost work and exergy: two views of the same concept
We present the fundamental equation for a system and for a process, and by considering irreversibility within the system, we show that the lost work concept emerges naturally from the formalism. We…
Joaquim AnacletoJun 6, 2023
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Lagrange top: integrability according to Liouville and examples of analytic solutions
Equations of a heavy rotating body with one fixed point can be deduced starting from a variational problem with holonomic constraints. When applying this formalism to the particular case of a…
Alexei A. DeriglazovJun 4, 2023
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High-order alloharmonics produced by nonperiodic drivers
High-order harmonics are ubiquitous in nature and present in electromagnetic, acoustic, and gravitational waves. They are generated by periodic nonlinear processes or periodic high-frequency pulses.…
M. S. Pirozhkova, K. Ogura, A. Sagisaka et al.Jun 1, 2023
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A simple approach to nonlinear nonholonomic systems with several examples
The main theme of the article is the study of discrete systems of material points subjected to constraints not only of a geometric type (holonomic constraints) but also of a kinematic type…
Federico TalamucciMay 29, 2023
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Brachistochrone and Sliding with Friction
Motions of a material point along a set of parabolas are studied, taking into account the forces of Coulomb friction. The obtained results are compared with similar motions along the cycloid. The…
A. V. KurilinMay 26, 2023
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Eliminating Infinite Self-Energies From Classical Electrodynamics
The theory of point-particles in classical electrodynamics has a well-known problem of infinite self-energy, and the same is true of quantum electrodynamics. Instead of concluding that there is no…
Andrew T. HymanMay 24, 2023
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Neighbourhood watch in mechanics: non-local models and convolution
This paper is intended to serve as a low-hurdle introduction to non-locality for graduate students and researchers with an engineering mechanics or physics background who did not have a formal…
Thomas Nagel, Tymofiy Gerasimov, Dominik KernMay 20, 2023
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DC Power Transported by Two Infinite Parallel Wires
This paper presents the calculation of the electrical power transported by the electromagnetic fields of two parallel wires carrying opposite DC currents. The Poynting vector is developed in bipolar…
Marc BouléMay 19, 2023
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All-dielectric meta-waveguides for flexible polarization control of guided light
Guided waves are the perfect carriers of electromagnetic signals in planar miniaturized devices due to their high localization and controlled propagation direction. However, it is still a challenge…
Syuzanna Asadulina, Andrey Bogdanov, Stanislav Glybovski et al.May 17, 2023
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Graded quasiperiodic metamaterials perform fractal rainbow trapping
The rainbow trapping phenomenon of graded metamaterials can be combined with the fractal spectra of quasiperiodic waveguides to give a metamaterial that performs fractal rainbow trapping. This is…
Bryn Davies, Gregory J. Chaplain, Timothy A. Starkey et al.May 17, 2023
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Discrete Molecular Dynamics
Computer simulation of the time evolution in a classical system is a standard numerical method, used in numerous scientific articles in Natural Science. Almost all the simulations are performed by…
S. ToxvaerdMay 17, 2023
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Numerical and Experimental Investigation of A Three-Axis Free Rotation Wind Tunnel Model
The current need of improving performance in terms of control and aerodynamic efficiency of ammunitions leads to the necessity of performing accurate flying geometry characterizations. Therefore, new…
Laurène Muller, Michel Libsig, Bastien Martinez et al.May 15, 2023
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Noether theorem in fluid mechanics
Invariance theorems in analytical mechanics, such as Noether's theorem, can be adapted to continuum mechanics. For this purpose, it is useful to give a functional representation of the motion and…
Henri GouinMay 15, 2023
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Brillouin Klein space and half-turn space in three-dimensional acoustic crystals
The Bloch band theory and Brillouin zone (BZ) that characterize wave behaviors in periodic mediums are two cornerstones of contemporary physics ranging from condensed matter to topological physics.…
Zhenxiao Zhu, Linyun Yang, Jien Wu et al.May 15, 2023
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A coordinate-free guide to the mechanics of thin shells
In this tutorial, we provide a coordinate-free derivation of the system of equations that govern equilibrium of a thin shell that can undergo shear. This system involves tensorial fields representing…
Giuseppe TomassettiMay 14, 2023
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Analytical model for predicting folding stable state of bistable deployable composite boom
The bistable deployable composite boom (Bi-DCB) can achieve bistable function by storing and releasing strain energy, which has a good application prospect in space field. For example, it serves as…
Tian-Wei Liu, Jiang-Bo Bai, Nicholas FantuzziMay 14, 2023
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Singular Azimuthally Propagating Electromagnetic Fields
We study the characteristics of azimuthally propagating electromagnetic fields in a cylindrical cavity. It is found that under certain conditions, the transverse components of the electromagnetic…
Mustafa Bakr, Smain AmariMay 11, 2023
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Cetaev condition for nonlinear nonholonomic systems and homogeneous constraints
We first present a way to formulate the equations of motion for a nonholonomic system with nonlinear constraints with respect to the velocities. The formulation is based on the Cetaev condition which…
Federico TalamucciMay 10, 2023
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Experimental and numerical investigation on folding stable state of bistable deployable composite boom
The bistable deployable composite boom (Bi-DCB) can realize the bistable function by storing and releasing strain energy, which has a good application prospect in the aerospace field. In this paper,…
Tian-Wei Liu, Jiang-Bo Bai, Hao-Tian Xi et al.May 9, 2023
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Phonon Bloch Oscillations
The classical motion of a one-dimensional chain of atoms coupled through a specific force function that depends on position shows features very similar to the Wannier-Stark problem of a quantum…
R. MerlinMay 8, 2023
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On the Origin of Acoustic Spin and Elastic Spin: Uncovering Hidden Wave Spin of Scalar Fields with Higher-Order Derivative Lagrangian
Scalar field should have no spin angular momentum according to conventional understandings in classical field theory. Yet, recent studies demonstrate the undoubted existence of wave spin endowed by…
Shuo Xin, Jie RenMay 8, 2023
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Radiation of a variable charge flying into medium
We study an electromagnetic radiation of a small bunch having a variable charge value and crossing a flat interface between two media. Both media are homogeneous, stationary, and isotropic. They may…
Xingzhen Fan, Andrey V. TyukhtinMay 7, 2023
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Interference aided finite resonant response in an undamped forced oscillator
We apply perturbative techniques to a driven undamped sinusoidal oscillator at resonance. The angular displacement, θ, obeys the dynamics θ + ω2 θ = Hωt. The linearized…
Shihabul Haque, Jayanta K. BhattacharjeeMay 6, 2023
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Exact Transient Analysis of a Biconical Antenna of Arbitrary Length and Cone Angle
Starting from a new factorization of the frequencydomain modal expansion coefficients, we generate analytical expressions in time-domain for the various quantities of interest of a biconical antenna…
Ramakrishna JanaswamyMay 5, 2023
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