Open AccessStochastic resonance of linear harmonic oscillator subjected to simple harmonic force with frequency fluctuation
Author(s) -
Liangying Zhang,
Guoxiang Jin,
Cao Li
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.080502
Subject(s) - simple harmonic motion , harmonic , resonance (particle physics) , harmonic oscillator , natural frequency , stochastic resonance , physics , amplitude , work (physics) , parametric oscillator , simple (philosophy) , moment (physics) , vibration , classical mechanics , acoustics , quantum mechanics , noise (video) , computer science , philosophy , image (mathematics) , epistemology , artificial intelligence
In view of the situation that the linear harmonic oscillator is subjected to the simple harmonic force with the frequency fluctuation, we work out the expression of the first-order moment for the system response. It is found that the system output response vibrates at the natural frequency, that the response amplitude shows bona-fide stochastic resonance as the simple harmonic excitation force frequency varies, and that the suppression and the resonance appears as the natural frequency varies.