Self-pulsing dynamics of ultrasound in a magnetoacoustic resonator

Details Self-pulsing dynamics of ultrasound in a magnetoacoustic resonator Self-pulsing dynamics of ultrasound in a magnetoacoustic resonator

2005-02-16

arxiv.org/abs/nlin/0502034v1

Nonlinear Sciences

Chaotic Dynamics

5 pages, 5 figures

Scientific paper

10.1103/PhysRevE.72.036611

A theoretical model of parametric magnetostrictive generator of ultrasound is considered, taking into account magnetic and magnetoacoustic nonlinearities. The stability and temporal dynamics of the system is analized with standard techniques revealing that, for a given set of parameters, the model presents a homoclinic or saddle--loop bifurcation, which predicts that the ultrasound is emitted in the form of pulses or spikes with arbitrarily low frequency.

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