Results 1 to 10 of about 716 (96)

Hamilton’s Principle for Circuits with Dissipative Elements [PDF]

open access: yesComplexity, 2019
The classic form of Hamilton’s variational principle does not hold for circuits with dissipative elements. It is shown in the paper that this may not be true in the case of systems consisting of the so-called higher-order elements.
Zdeněk Biolek   +2 more
doaj   +4 more sources

On the coupling of Hamilton's principle and thermodynamic extremal principles [PDF]

open access: yesJournal of the Mechanics and Physics of Solids, 2023
Extremal principles can generally be divided into two rather distinct classes. There are, on the one hand side, formulations based on the Lagrangian or Hamiltonian mechanics, respectively, dealing with time dependent problems, but essentially resting on conservation of energy and thus being not applicable to dissipative systems in a consistent way.
Klaus Hackl   +2 more
openaire   +3 more sources

Extended framework of Hamilton’s principle for single-degree-of-freedom nonlinear damping systems

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
The paper explores application of the variational formalism called extended framework of Hamilton’s principle to nonlinear damping systems. Single-degree-of-freedom systems with dominant source of nonlinearity from polynomial powers of the velocity are ...
Jinkyu Kim
doaj   +1 more source

Nonlinear Torsional Vibration Analysis of Nanorods in the Presence of Surface Energy Effect: Multi-Mode Galerkin Method [PDF]

open access: yesMechanics of Advanced Composite Structures, 2022
In this paper, the nonlinear torsional vibrations and internal resonances of nanorods are investigated by considering the surface energy effects. For this purpose, Hamilton’s principle is implemented to derive the nonlinear governing equation of motion ...
Reza Nazemnezhad, Sahar Farahmandrad
doaj   +1 more source

Long-term stability of cylindrical shells of viscoelastic composites

open access: yesLietuvos Matematikos Rinkinys, 2002
On the grounds of Hamilton's principle the system of linear integral equations has been ob­tained for the solution of stability problems of cylindrical shells made of viscoelastic composite materials by the finite element method.
Vaclovas Sirius
doaj   +3 more sources

Hamiltonian Variational Formulation of Three-Dimensional, Rotational Free-Surface Flows, with a Moving Seabed, in the Eulerian Description

open access: yesFluids, 2022
Hamiltonian variational principles have provided, since the 1960s, the means of developing very successful wave theories for nonlinear free-surface flows, under the assumption of irrotationality.
Constantinos P. Mavroeidis   +1 more
doaj   +1 more source

Size-dependent Nonlinear Forced Vibration Analysis of Viscoelastic/Piezoelectric Nano-beam [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
In this paper, the nonlinear forced vibration of isotropic viscoelastic/ piezoelectric Euler-Bernoulli nano-beam is investigated. For this purpose, the consistent couple stress theory is utilized for modeling the viscoelastic/piezoelectric nano-beam ...
Zahra Tadi Beni   +2 more
doaj   +1 more source

A model of integral quantum [PDF]

open access: yesAIP Advances
The author thinks that the existing quantum mechanics is incomplete in nature and that a new model of quantum needs to be created to resolve this problem of incompleteness.
Guangzhou Ge
doaj   +1 more source

Construction of a functional by a given second-order Ito stochastic equation

open access: yesOpen Mathematics, 2023
In this article, we consider the problem of extending Hamilton’s principle to the class of natural mechanical systems with random perturbing forces of white noise type.
Tleubergenov Marat   +2 more
doaj   +1 more source

Quasi-3D Hyperbolic Shear Deformation Theory for the Free Vibration Study of Honeycomb Microplates with Graphene Nanoplatelets-Reinforced Epoxy Skins

open access: yesMolecules, 2020
A novel quasi-3D hyperbolic shear deformation theory (QHSDT) with five unknowns is here employed, together with the Hamilton’s principle and the modified couple stress theory (MCST) to analyze the vibrational behavior of rectangular micro-scale sandwich ...
Hossein Arshid   +4 more
doaj   +1 more source

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