Results 11 to 20 of about 1,590 (240)

Forced Friends: Why the Free Energy Principle Is Not the New Hamilton’s Principle [PDF]

open access: yesEntropy
The claim that the free energy principle is somehow related to Hamilton’s principle in statistical mechanics is ubiquitous throughout the subject literature. However, the exact nature of this relationship remains unclear.
Bartosz Michał Radomski   +1 more
doaj   +2 more sources

An Electromechanical Model of Neuronal Dynamics using Hamilton's Principle [PDF]

open access: yesFrontiers in Cellular Neuroscience, 2015
Damage of the brain may be caused by mechanical loads such as penetration, blunt force, shock loading from blast, and by chemical imbalances due to neurological diseases and aging that trigger not only neuronal degeneration but also changes in the ...
Corina Stefania Drapaca
doaj   +2 more sources

Generalized Hamilton’s Principle for Inelastic Bodies Within Non-Equilibrium Thermodynamics

open access: yesEntropy, 2011
Within the thermodynamic framework with internal variables, the classical Hamilton’s principle for elastic bodies is extended to inelastic bodies composed of materials whose free energy densities are point functions of internal variables, or the so ...
Qiang Yang, Kuang-Dai Leng
doaj   +1 more source

Vibration characteristics analysis of roadheader rotary cutting process

open access: yesResults in Engineering, 2023
In order to solve the problem that the vibration generated during the excavation and cutting process of the roadheader, which accelerates the wear and tear of roadheader parts and reduces the service life.
Ying Ma
doaj   +1 more source

Ambiguity resolution for integrable gravitational charges

open access: yesJournal of High Energy Physics, 2022
Recently, Ciambelli, Leigh, and Pai (CLP) [ arXiv:2111.13181 ] have shown that nonzero charges integrating Hamilton’s equation can be defined for all diffeomorphisms acting near the boundary of a subregion in a gravitational theory.
Antony J. Speranza
doaj   +1 more source

Gyarmati’s Variational Principle of Dissipative Processes

open access: yesEntropy, 2014
Like in mechanics and electrodynamics, the fundamental laws of the thermodynamics of dissipative processes can be compressed into Gyarmati’s variational principle. This variational principle both in its differential (local) and in integral (global) forms
József Verhás
doaj   +1 more source

Three Models of a Sandwich Beam: Bending, Buckling, and Free Vibrations

open access: yesEngineering Transactions, 2022
This paper is devoted to the analytical modelling of a sandwich beam. Three models of this beam are elaborated. Two nonlinear individual shear theories of deformation of a plane cross-sections are proposed. Based on Hamilton’s principle, two differential
Krzysztof MAGNUCKI   +2 more
doaj   +1 more source

Derivation of Equations for Flexible Multibody Systems in Terms of Quasi-Coordinates from the Extended Hamilton’s Principle

open access: yesShock and Vibration, 1993
Early derivations of the equations of motion for single rigid bodies, single flexible bodies, and flexible multibody systems in terms of quasi-coordinates have been carried out in two stages.
L. Meirovitch
doaj   +1 more source

Mathematical Fundamentals of Modern Linear Optics

open access: yesInternational Journal of Antennas and Propagation, 2012
All known quantum-mechanical approaches to wave and statistical optics are united into a single theory, using Feynman's path integral as a fundamental principle.
Andrey V. Gitin
doaj   +1 more source

‘Uncertainty’ principle in two fluid–mechanics [PDF]

open access: yesESAIM: Proceedings and Surveys, 2020
Hamilton’s principle (or principle of stationary action) is one of the basic modelling tools in finite-degree-of-freedom mechanics. It states that the reversible motion of mechanical systems is completely determined by the corresponding Lagrangian which ...
Gavrilyuk Sergey
doaj   +1 more source

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