2003•Vietnam Journal of MechanicsOpen access

Frequency of a Vanderpol oscillator with large cubic restoring nonlinearity

Nguyễn Văn Định, Tran Duong Tri

Abstract

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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Key concepts: Duffing equation, Restoring force, Oscillation (cell signaling), Nonlinear system, Control theory (sociology), Mathematical analysis, Physics, Mathematics