Autoresonant homeostat concept for engineering application of nonlinear vibration modes
Autoresonant homeostat concept for engineering application of nonlinear vibration modes
复制标题
非线性振动模式工程应用的自谐振稳态概念
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
I. J. Sokolov
中科院分区：
文献类型：
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作者：
V. Babitsky;I. J. Sokolov
对强非线性(冲击振动)系统的分析表明，存在具有空间和时间集中的非线性振动模式。例如，通过将振动浓缩为工具对被处理介质的脉冲作用的一系列碰撞，可以通过加强振动过程来实现这些模式，或者可以是由于某些不连续(接触松弛、裂纹的到来等)的结果。在建筑里。利用非线性模式来发展有用的机械功导致了在不明确的动力系统中激励和控制共振的必要性。这是由于接受治疗的媒体的反应难以预测。在这类系统中，非线性模式的最大强度激励、镇定和控制是一项工程挑战，需要一种新的自适应控制方法来实现。
Analysis of strongly nonlinear (vibro-impact) systems revealed an existence of nonlinear modes of vibration with spatial and temporal concentration of energy. The modes can be realised, for example, through intensification of the vibration process by condensing the vibration into a sequence of collisions for impulsive action of the tools to the media being treated or can be as a result of some discontinuity (slackening of a contact, arrival of crack, etc.) in the structure. The use of the nonlinear modes to develop useful mechanical work leads to necessity of excitation and control of resonance in ill-defined dynamical systems. This is due to the poorly predictable response of the media being treated. Excitation, stabilisation and control of a nonlinear mode at the top intensity in such systems is an engineering challenge and needs a new method of adaptive control for its realisation.