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The impact of qubic nonlinearity of spring force On the vibrations of the duffing oscillator

Author
ROBERT KOSTEK
Keywords
nonlinear, vibration, Duffing, oscillator
Abstract

The paper shows the impact of qubic non-linearity of spring force on the vibrations of the Duffing oscillator. The comparison leads to the conclusion that, nonlinearity can play a significant role both in case of free and forced vibrations. A number of characteristic phenomena have been observed, i.e. bending resonance peak, and influence of non-linearity on the natural frequency. Received results shows clearly that non-linearity should not be neglected if accurate models are required.

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