From A. Tondl’s Dutch contacts to Neimark-Sacker-bifurcation

Autor: Bakri T., Verhulst F.
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Applied and Computational Mechanics, Vol 16, Iss 2, Pp 87-100 (2022)
Druh dokumentu: article
ISSN: 1802-680X
2336-1182
DOI: 10.24132/acm.2022.770
Popis: We present a description of the many contacts of A. Tondl with Dutch scientists involving nonlinear dynamics models for mechanics. One of the topics is Neimark-Sacker bifurcation that leads to the presence of families of quasi-periodic solutions that are geometrically organised and visualised in tori. A new model in the spirit of A. Tondl, containing interaction of self-excited and parametrically excited oscillators is analysed to find this bifurcation and quasi-periodic solutions. The analysis using averaging in combination with numerical bifurcation tools MATCONT and AUTO produces a picture of rich dynamical phenomena with several surprises among which a special quasi-periodic solution produced by the averaged equation.
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