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Bogolyubov averaging and normalization procedures in nonlinear mechanics. I

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Abstract

We suggest a new method for asymptotic analysis of nonlinear dynamical systems based on group-the-oretic methods. On the basis of the Bogolyubov averaging method, we develop a new normalization procedure — “asymptotic decomposition.” We clarify the contribution of this procedure to the interpretation and development of the averaging method for systems in the standard form and systems with several fast variables. According to this method, the centralized system is regarded as a direct analog of the system averaged in Bogolyubov's sense. The operation of averaging is interpreted as the Bogolyubov projector, i.e., the operation of projection of an operator onto the algebra of centralizer.

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Authors and Affiliations

  1. Institute of Mathematics, Ukrainian Academy of Sciences, Kiev

    Yu. A. Mitropol'skii (Academician) & A. K. Lopatin

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  1. Yu. A. Mitropol'skii
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  2. A. K. Lopatin
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Published in Ukrainskii Matematicheskii Zhurnal, Vol. 46, No. 9, pp. 1171–1188, September, 1994.

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Mitropol'skii, Y.A., Lopatin, A.K. Bogolyubov averaging and normalization procedures in nonlinear mechanics. I. Ukr Math J 46, 1287–1306 (1994). https://doi.org/10.1007/BF01059420

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  • DOI: https://doi.org/10.1007/BF01059420

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