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On the stability of the equilibrium under periodic perturbations of an oscillator with a power-law restoring force with a rational exponent. / Bibikov, Yu N.; Bukaty, V. R.; Trushina, N. V.
в: Journal of Applied Mathematics and Mechanics, Том 80, № 6, 01.01.2016, стр. 443-448.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - On the stability of the equilibrium under periodic perturbations of an oscillator with a power-law restoring force with a rational exponent
AU - Bibikov, Yu N.
AU - Bukaty, V. R.
AU - Trushina, N. V.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Small time-periodic perturbations of the oscillator [Figure presented] where p and q are odd numbers, p > q, are considered. The stability of the equilibrium x = 0 is investigated. The problem is distinguished by the fact that the frequency of unperturbed oscillations is an infinitesimal function of the amplitude. It is shown that in the case of a general equilibrium, for fixed value of q, the Lyapunov constant for values of p that are equal modulo 4q is calculated by the same algorithms, i.e., the problem reduces to a consideration of a finite number (equal to 2q − 2 if q > 1, and equal to 2 if q = 1) of values of p. An estimate, depending on q, of the number of terms of the transformation required for the calculation of the Lyapunov constant for values of p that are equal modulo 4q is given. Particular cases are considered.
AB - Small time-periodic perturbations of the oscillator [Figure presented] where p and q are odd numbers, p > q, are considered. The stability of the equilibrium x = 0 is investigated. The problem is distinguished by the fact that the frequency of unperturbed oscillations is an infinitesimal function of the amplitude. It is shown that in the case of a general equilibrium, for fixed value of q, the Lyapunov constant for values of p that are equal modulo 4q is calculated by the same algorithms, i.e., the problem reduces to a consideration of a finite number (equal to 2q − 2 if q > 1, and equal to 2 if q = 1) of values of p. An estimate, depending on q, of the number of terms of the transformation required for the calculation of the Lyapunov constant for values of p that are equal modulo 4q is given. Particular cases are considered.
UR - http://www.scopus.com/inward/record.url?scp=85021721126&partnerID=8YFLogxK
U2 - 10.1016/j.jappmathmech.2017.06.002
DO - 10.1016/j.jappmathmech.2017.06.002
M3 - Article
AN - SCOPUS:85021721126
VL - 80
SP - 443
EP - 448
JO - Journal of Applied Mathematics and Mechanics
JF - Journal of Applied Mathematics and Mechanics
SN - 0021-8928
IS - 6
ER -
ID: 49226771