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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Autoparametric resonance of relaxation oscillations
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Autoparametric resonance of relaxation oscillations

机译:弛豫振荡的自参量共振

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摘要

Stable normal mode vibrations in engineering can be undesirable and one of the possibilities for quenching these vibrations is by embedding the oscillator in an autoparametric system by coupling to a damped oscillator. We have the possibility of destabilising the undesirable vibrations by a suitable tuning and choice of coupling parameters. In the case of normal mode vibration derived from a relaxation oscillations we need low-frequency tuning of the attached oscillator. An additional feature is that to make the quenching effective we also have to deform the slow manifold by choosing appropriate coupling; this is illustrated for van der Pol relaxation. A number of numerical experiments have been done and show some interesting phenomena, such as a chaotic attractor and effective quenching.
机译:工程中的稳定的正常模式振动可能是不希望的,而消除这些振动的可能性之一是通过将振荡器与阻尼振荡器耦合而将其嵌入到自动参数系统中。通过适当的调整和耦合参数的选择,我们可能会使不稳定的振动不稳定。在由弛豫振荡引起的正常模式振动的情况下,我们需要对连接的振荡器进行低频调谐。另一个特点是,要使淬火有效,我们还必须通过选择适当的联轴器来使慢速歧管变形。 van der Pol松弛可以说明这一点。已经进行了许多数值实验,并显示了一些有趣的现象,例如混沌吸引子和有效淬灭。

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