TY - JOUR AU - Dinh, Nguyen Van AU - Tri, Tran Duong PY - 2003/12/31 Y2 - 2024/03/29 TI - Frequency of a Vanderpol oscillator with large cubic restoring nonlinearity JF - Vietnam Journal of Mechanics JA - Vietnam J. Mech. VL - 25 IS - 4 SE - Research Article DO - 10.15625/0866-7136/25/4/6591 UR - https://vjs.ac.vn/index.php/vjmech/article/view/6591 SP - 195-200 AB - <p>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.</p> ER -