Abstract—

A natural phenomenon has been discovered—a natural property of nonlinear oscillations of elastic mechanical structures interacting with the environment. The indicated property, related in view of its objective reality to natural phenomena, is as follows: if the forces of excitation of structural vibrations from the environment exceed the strength of their damping, then the frequency of oscillations increases or decreases depending on whether the excitation of oscillations is associated with displacements or velocities of design points.On the basis of the natural property, a mathematical model of oscillations with a variable frequency was first constructed and the mechanisms of the implementation of three methods for suppressing unstable structural oscillations, allowing to switch from an unstable state to periodic structural oscillations, are presented.

中文翻译：

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抑制机械结构不稳定的振荡

摘要-

已经发现了一种自然现象-弹性机械结构与环境相互作用的非线性振荡的自然特性。鉴于其客观现实与自然现象相关的指示性质如下：如果来自环境的结构振动的激发力超过其阻尼强度，则振荡频率取决于激发是增加还是减少振动的变化与设计点的位移或速度有关。基于自然属性，首先构造了一个频率可变的振动数学模型，并提出了三种抑制结构性不稳定振动的方法的实现机理，允许进行切换从不稳定的状态到周期性的结构振动，