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eigenfrequency |
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eigenfrequency [′ī·gən‚frē·kwən·sē] (physics) One of the frequencies at which an oscillatory system can vibrate. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| A second feedback system shifted the phase signal of the lever response to 90°, which was then used as the excitation signal to keep the lever oscillating at its fundamental eigenfrequency. First, a modal analysis of the nominal model must be performed, yielding the nominal eigenfrequency values f^sub n,i^ and the nominal mode shapes; see Figure 14. Filtering has been used in attempts to obtain monochromatic waves by using tubes separated into periodically spaced chambers (at some known eigenfrequency corresponding to one half wavelength). |
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