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A. G. Petrov, "Nonlinear vibrations of a swinging spring at resonance," Mech. Solids. 41 (5), 13-22 (2006)
Year 2006 Volume 41 Number 5 Pages 13-22
Title Nonlinear vibrations of a swinging spring at resonance
Author(s) A. G. Petrov (Moscow)
Abstract We propose to study nonlinear vibrations of a swinging spring by the Poincaré-Birkhoff normal form method. In this method [1, 2], the Hamiltonian of the system is represented as the sum of the quadratic part, which is said to be unperturbed, and terms of order higher than 2. Using canonical transformations, one can simplify the Hamiltonian system so that it becomes integrable up to fourth- and higher-order terms. Thus we obtain an asymptotic solution of the nonlinear problem. Traditional normalization methods for a system with two degrees of freedom are rather cumbersome and require a lot of computations [2-6]. The change of variables is sought with the use of generating functions or a generating Hamiltonian.

In the present paper, we use the definition of invariant normal form given in [7, 8], which does not require separation into the autonomous and nonautonomous or resonance and nonresonance cases and can be performed in the framework of a unified approach. The asymptotics of the normal form is obtained by successive computations of the quadratures. In contrast to the Zhuravlev method [7, 8], the generating function [9-11] is used instead of the generating Hamiltonian. In the present paper, we continue the study, initiated in [12], of nonlinear vibrations of a swinging spring in the resonance case.
References
1.  H. Poincaré, Selected Works. Volume 2 [Russian translation], Nauka, Moscow, 1972.
2.  D. D. Birkhoff, Dynamical Systems [Russian translation], Gostekhizdat, Moscow-Leningrad, 1941.
3.  A. D. Bryuno, Restricted Three-Body Problem [in Russian], Nauka, Moscow, 1990.
4.  V. I. Arnold, Mathematical Aspects of Classical Mechanics [in Russian], Editorial URSS, Moscow, 2000.
5.  V. I. Arnold, Additional Chapters of Ordinary Differential Equations [in Russian], Nauka, Moscow, 1978.
6.  V. I. Arnold, V. V. Kozlov, and A. I. Neishtadt, Mathematical Aspects of Classical and Celestial Mechanics [in Russian], VINITI, Moscow, 1985.
7.  V. Ph. Zhuravlev, Foundations of Theoretical Mechanics [in Russian], Nauka, Fizmatlit, Moscow, 1997.
8.  V. Ph. Zhuravlev, "Invariant normalization of nonautonomous Hamiltonian systems," PMM [Applied Mathematics and Mechanics], Vol. 66, No. 3, pp. 356-365, 2002.
  
9.  A. G. Petrov, "A parametric method for constructing Poincaré mappings in hydrodynamical systems," PMM [Applied Mathematics and Mechanics], Vol. 66, No. 6, pp. 948-967, 2002.
10.  A. G. Petrov, "A modification of the invariant normalization method for Hamiltonians using the parametrization of canonical transformations," Doklady RAN, Vol. 386, No. 4, pp. 482-486, 2002.
11.  A. G. Petrov, "On invariant normalization of nonautonomous Hamiltonian systems," PMM [Applied Mathematics and Mechanics], Vol. 68, No. 3, pp. 402-413, 1970.
12.  M. N. Zaripov and A. G. Petrov, "Nonlinear vibrations of a swinging string," Doklady RAN, Vol. 399, No. 3, pp. 347-352, 2004.
13.  A. H. Nayfeh, Perturbation Methods, Wiley, New York, 1973.
14.  V. M. Starzhinskii, Applied Methods in Nonlinear Vibrations [in Russian], Nauka, Moscow, 1977.
15.  V. N. Bogaevskii and A. Ya. Povzner, Algebraic Methods in Nonlinear Perturbation Theory [in Russian], Nauka, Moscow, 1987.
16.  W. A. Mersman, "A new algorithm for the Lie transformation," Celest. Mech., Vol. 3, Mo. 1, pp. 81-89, 1970.
17.  A. P. Markeev and A. G. Sokol'skii, Several Calculational Algorithms for Normalization of Hamiltonian Systems. Preprint No. 31 [in Russian], In-t Problem Mekhaniki RAN, Moscow, 1976.
Received 10 June 2005
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