Developments of the indirect method for measuring the high frequency dynamic stiffness of resilient elements
Developments of the indirect method for measuring the high frequency dynamic stiffness of resilient elements
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DOI：
10.1006/jsvi.1998.1492
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发表时间：
1998-05-28
影响因子：
4.7
通讯作者：
Thompson, DJ
中科院分区：
文献类型：
--
作者：
Thompson, DJ
在许多应用中，弹性元件的复合刚度是建立隔振模型所需的一个重要参数。测量方法正在标准化，以允许在已知载荷条件下测量这种刚度作为激励频率的函数。本文描述了一种这样的方法，即间接法，该方法将弹性元件置于两块大块之间，测量两块大块的振动。这里提出了对这种方法的若干改进。该方法的这些方面，然后用实例结果的测量弹性轨道垫用于铁路轨道说明。演示了如何扩展测量的频率范围，以及如何可靠地分离旋转分量和横向分量。(C) 1998学术出版社有限公司
The complex stiffness of resilient elements is an important parameter required in order to model vibration isolation for many applications. Measurement methods are being standardized which allow such a stiffness to be measured as a function of excitation frequency for known loading conditions. This paper describes one such method, the indirect method, in which the resilient element is placed between two large blocks, the vibrations of which are measured. A number of refinements to this method are proposed here. These aspects of the method are then illustrated by using example results of measurements on a resilient rail pad for use in railway track. It is shown bow the frequency range of the measurements can be extended and how rotational and lateral components can be separated reliably. (C) 1998 Academic Press Limited.