Frequency of a Vanderpol oscillator with large cubic restoring nonlinearity

Nguyen Van Dinh, Tran Duong Tri


In [2], a modified Poincare method has been presented and applied to evaluate the period (frequency) of free oscillation in an undamped Duffing oscillator with large cubic restoring nonlinearity. There, the system examined is supposed to be near certain linear one with unknown (to be evaluated) frequency.

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