TITLE:
Self-Oscillations in a Generalized Van Der Pol and Rayleigh Oscillator
AUTHORS:
Borys I. Basok, Volodymyr V. Gotsulenko
KEYWORDS:
Self-Oscillations, Limit Cycle, Bifurcation, Wave Resistance
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.13 No.9,
September
11,
2025
ABSTRACT: This paper investigates the emergence and transformation of self-oscillatory regimes in a nonlinear dynamic system based on a generalized van der Pol oscillator model. Using asymptotic and bifurcation analysis, conditions for the existence of limit cycles are derived and their stability is examined. Special attention is given to both global and local bifurcations, including the formation of homoclinic loops and Andronov-Hopf bifurcations. The influence of wave resistance and equilibrium position on the qualitative structure of the phase portrait is also analyzed.