Results 11 to 20 of about 233,327 (304)

Perturbation Methods for the Eigencharacteristics of Symmetric and Asymmetric Systems

open access: yesShock and Vibration, 2018
Dynamic analysis for a vibratory system typically begins with an evaluation of its eigencharacteristics. However, when design changes are introduced, the eigensolutions of the system change and thus must be recomputed.
Philip D. Cha, Austin Shin
doaj   +2 more sources

Asymptotic method for approximation of resonant interaction of nonlinear multidimensional hyperbolic waves

open access: yesMathematical Modelling and Analysis, 2008
A method of averaging along characteristics of weakly nonlinear hyperbolic systems, which was presented in earlier works of the author for one dimensional waves, is generalized for some cases of multidimensional wave problems.
Aleksandras Krylovas
doaj   +1 more source

Asymptotic solution of the mathematical model of nonlinear oscillations of absolutely elastic inextensible weightless string

open access: yesNonlinear Analysis, 2010
The mathematical model of nonlinear oscillations of weightless string is analyzed. To find an asymptotic solution of the problem, uniformly valid in a long interval of time, an averaged system of integral differential equations has been constructed.
A. Krylovas   +2 more
doaj   +1 more source

Influence of the Motion of a Spring Pendulum on Energy-Harvesting Devices

open access: yesApplied Sciences, 2021
Energy harvesting is becoming more and more essential in the mechanical vibration application of many devices. Appropriate devices can convert the vibrations into electrical energy, which can be used as a power supply instead of ordinary ones. This study
Mohamed K. Abohamer   +4 more
doaj   +1 more source

Logit Perturbation

open access: yes, 2022
Features, logits, and labels are the three primary data when a sample passes through a deep neural network. Feature perturbation and label perturbation receive increasing attention in recent years.
Wu, Ou   +3 more
core   +1 more source

Perturbed MEBDF methods

open access: yesComputers & Mathematics with Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Raffaele D'Ambrosio   +2 more
openaire   +2 more sources

Perturbative subtraction methods [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2000
Talk presented at LATTICE99(algorithms)
openaire   +2 more sources

Kruskal's Perturbation Method [PDF]

open access: yesJournal of Mathematical Physics, 1970
A general method for eliminating the angle variable from the equations of a perturbed periodic motion and for deriving an ``adiabatic invariant'' J has been given by Kruskal and, for a special class of Hamiltonian systems, McNamara and Whiteman have shown (to order ε2) that J is related to a set of invariants I obtained from the expansion of Poisson ...
openaire   +1 more source

The vibration of nanobeam resting on elastic foundation using modified couple stress theory

open access: yesTehnički Glasnik, 2018
In this paper, the vibration of nanobeams resting on the Winkler foundation is proposed using the modified couple stress theory. Hamilton’s principle is utilized to construct the governing equations.
Necla Togun, Süleyman M. Bağdatli
doaj   +1 more source

An upper bound for validity limits of asymptotic analytical approaches based on normal form theory [PDF]

open access: yes, 2012
Perturbation methods are routinely used in all fields of applied mathematics where analytical solutions for nonlinear dynamical systems are searched.
LAMARQUE, Claude-Henri   +2 more
core   +1 more source

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