Author： Hansen M.H.
Publisher： Academic Press
ISSN： 0022-460X
Source： Journal of Sound and Vibration, Vol.234, Iss.4, 2000-07, pp. : 577-589
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Abstract
The effect of high-frequency, non-resonant parametric excitation on the low-frequency response of spinning discs is considered. The parametric excitation is obtained through a non-constant rotation speed, where the frequency of the pulsating overlay is much higher than the lowest natural frequencies. It is shown analytically and numerically that this excitation has the non-trivial effect of increasing these natural frequencies with increasing pulsation amplitude.
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