Alternative Control Design Approach to Shaking Facilities for Re-Creating Seismic Motion
Alternative Control Design Approach to Shaking Facilities for Re-Creating Seismic Motion
复制标题
用于重建地震运动的振动设施的替代控制设计方法
DOI：
10.1115/pvp2002-1399
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
S. Takai
中科院分区：
文献类型：
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作者：
E. Sato;T. Kakegawa;Taku Suzuki;K. Kajiwara;Y. Tagawa;S. Takai
3D全尺寸地震测试设施（E-Defense）目前正在神户附近的三木市建设中。建成后，该设施将拥有一个 750 吨的振动台，尺寸为 20m x 15m，最大负载质量为 1200 吨。它将能够在三个维度上产生六个自由度的振动。然而，该设施考虑的测试模型的质量为1200吨，而振动台的质量为750吨，即振动台重量的1.6倍，比普通测试模型大得多。此外，由于测试重物的损坏，振动特性在实验过程中发生了很大的变化。因此，迫切需要更好的控制设计来克服这些问题。本研究提出了一种能够在振动台上准确再现地震波并考虑鲁棒性的控制方法。此外，我们将通过使用现有的二维三自由度小型振动台进行控制实验来验证其有效性，该振动台应用了该控制方法。Copyright © 2002 by ASME
The 3-D Full-Scale Earthquake Testing Facility (E-Defense) is now under construction in Miki City near Kobe. When completed, the facility will have a 750-ton shaking table measuring 20m by 15m, with a maximum load mass of 1200 tons. It will be able to create vibration in three dimensions with six degrees of freedom. However, the test model considered for this facility has a mass of 1200 tons compared to the shaking table mass of 750 tons, i.e., 1.6 times as heavy as the shaking table and much larger than ordinary test models. In addition, the vibration characteristics change considerably during the experiment due to the damage done to the test weight. Therefore, a better control design is urgently needed in order to overcome these problems. This research suggests a control method that will reproduce the earthquake wave accurately on the shaking table and will consider the robustness. Moreover, we will verify its efficiency by performing a control experiment using an existing two–dimensional, three-degree-of-freedom small shaking table, to which this control method is applied.Copyright © 2002 by ASME