Stability of stationary regimes in nonlinear systems: analytical and numerical approaches
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Дата
2019
ORCID
DOI
Науковий ступінь
Рівень дисертації
Шифр та назва спеціальності
Рада захисту
Установа захисту
Науковий керівник
Члени комітету
Видавець
Sapienza University of Rome
Анотація
A stability of stationary regimes in the form of nonlinear normal modes (NNMs) with rectilinear or nearrectilinear trajectories is analysed by using the Ince algebraization when a variable associated with the vibration mode is chosen as the new independent argument. In this case the variational equations are transformed to equations with singular points. Other approach is realized for NNMs with regular or chaotic behavior in time. Namely, a test which is a consequence of the well-known Lyapunov criterion of stability is used. Both approaches are also used in analysis of stability of other stationary regimes, namely, standing or traveling nonlinear waves.
Опис
Ключові слова
nonlinear normal vibration modes, NODYCON, algebraization by Ince, Gegenbauer polynomials, нелінійні нормальні режими вібрації, алгебраїзація за Ince, поліноми Гегенбауера
Бібліографічний опис
Stability of stationary regimes in nonlinear systems: analytical and numerical approaches / Yuri V. Mikhlin [at al.] // NODYCON 2019 : book of abstr. of the 1st Nonlinear dynamics conf., February 17-20, 2019. – Rome : SUR, 2019. – [2 p.].