Abstract

This article is devoted to the development of a dynamic vibration absorber as a system in which an air spring moves between guides of a given shape perpendicular to their axis of symmetry. The shape of the guides is determined from the condition that the characteristic of the dynamic absorber is linear, which is equivalent to a spring with a given stiffness. The main disadvantage of most modern dynamic absorbers is that they are effective when operating only at a certain frequency of the driving force acting on a protected object. With a small change in this frequency, the amplitude of the protected object can increase many times over. This article proves that, by changing the designed pressure in the air spring of the proposed absorber, it is possible to get a given stiffness, at which it is effective at different frequencies of the driving force.

中文翻译：

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刚度可调的动态减振器

摘要

本文致力于开发动态减振器作为一种系统，其中空气弹簧在垂直于其对称轴的给定形状的导轨之间移动。导轨的形状是根据动力减振器的特性是线性的条件来确定的，这相当于具有给定刚度的弹簧。大多数现代动态减震器的主要缺点是，它们仅在作用于受保护物体的驱动力的特定频率下工作时才有效。通过该频率的微小变化，受保护物体的振幅可以增加许多倍。本文证明，通过改变所提出的减振器空气弹簧的设计压力，可以获得给定的刚度，在该刚度下，该刚度在驱动力的不同频率下都有效。