Generalization of the Krylov-Bogoliubov Method for Nonlinear Oscillators

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In this paper the Krylov-Bogoliubov method for solving nonlinear oscillators is considered. Based on the original method, developed for the oscillator with small nonlinearity, a generalization is made to oscillators with strong nonlinearity. After rewriting the equation into two first order differential equations, the averaging procedure is introduced. Truly nonlinear differential equations are investigated where the linear term does not exist nor the linearization of the equation is possible. Solution is assumed in the form of the Ateb-function. After averaging the approximate solution for the oscillator is obtained. A numerical example is tested. It is shown that the difference between the analytical approximate solution and the exact numerical one is negligible.

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3-11

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October 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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[1] N.M. Krylov, N.N. Bogoliubov, On Various Formal Expansions of Non-linear Mecahnics, Izdat. Zagalnoukr. Akad, Nauk, Kiev, 1934. (Ukranian).

Google Scholar

[2] N.M. Krylov, N.N. Bogolyubov, New Metods in Non-linear Mechanics, ONTI GTTI, Moscow-Leningrad, (1934).

Google Scholar

[3] N.M. Krylov, N.N. Bogoliubov, Introduction to Nonlinear Mechanics, Princeton University Press, Princeton, (1947).

Google Scholar

[4] N.N. Bogoliubov, Y.A. Mitropolsky, Asymptotic Methods in the Theory of Non-Linear Oscillations, Gordon and Breach, New York, (1961).

Google Scholar

[5] N.N. Bogolubov, N.N. Bogolubov, Jnr., Introduction to Quantum Statistical Mechanics, Gordon and Breach, ISBN 2-88124-879-9, (1992).

Google Scholar

[6] L. Cveticanin, M. Kalami-Yazdi, Z. Saadatnia, H. Askari, Application of Hamiltonian approach to the generalized nonlinear oscillator with fractional power, International Journal of Nonlinear Sciences and Numerical Simulation, 11, 997-1001, (2010).

DOI: 10.1515/ijnsns.2010.11.12.997

Google Scholar

[7] L. Cveticanin, T. Pogany, Oscillator with a sum of non-integer order non-linearities, Journal of Applied Mathematics, doi: 10. 1155/2012/649050. 2012, Article ID 649050, 20 pages, (2012).

Google Scholar

[8] L. Cveticanin, Strongly Nonlinear Oscillators, Analytical Solutions, Springer, New York, (2014).

Google Scholar