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对隔振基础的脉动干扰测试与分析,长期以来采用的是拾震器拾取地脉动信号,再经光线示波器或笔绘记录仪把信号记录下来,然后取得脉动信号的振幅值的数据,这种方法,虽然也能较正确地取得一些地动幅值的数据,但对于了解和分析基础本身的一些隔振效应还存在着一定的缺陷。随着科学技术的发展,信号处理专用设备的出现,采用频谱方法来考察基础的一些有关性能成为可能,使隔振基础的分析、处理技术朝前跨了进一步。本文通过对振动台隔振基础的测试实例,介绍了如何利用随机信号的数据处理方法测定隔振基础。我们认为开展这项对隔振基础的脉动测试分析工作是有一定的实际意义的。通过对隔振基础的脉动测试和分析。有助于了解隔振基础本身的一些特性,也能评价一个隔振基础的性能,并能给予有关设计人员提供一些有益的参考。
Vibration isolation based on the vibration test and analysis, has long been used to pick up the pulse picker vibration signal, and then recorded by a light oscilloscope or pen-recorder to record the signal, and then obtain the amplitude of the pulsation signal data, this Although some data of ground motion magnitude can be obtained more correctly, there are still some shortcomings in understanding and analyzing some of the vibration isolation effects of the foundation itself. With the development of science and technology, the emergence of special equipment for signal processing makes it possible to investigate some basic performance based on spectrum methods, so that the analysis and processing technology of vibration isolation foundation can be further advanced. In this paper, based on the testing examples of shaking table vibration isolation, this paper introduces how to use the random signal data processing method to measure the vibration isolation foundation. We think it is of practical significance to conduct this pulsatile test and analysis of the vibration isolation foundation. Pass the pulsation test and analysis of the vibration isolation foundation. Help to understand some of the characteristics of the vibration isolation foundation itself, but also to evaluate the performance of a vibration isolation foundation, and to provide some useful reference to the designer.