Sampled‐data H2 optimal output feedback control for civil structures
Sampled‐data H2 optimal output feedback control for civil structures
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DOI：
10.1002/(sici)1096-9845(199909)28:9
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发表时间：
1999-09
影响因子：
4.5
通讯作者：
Seshasayee Ankireddi;Henry T. Y. Yang
中科院分区：
文献类型：
--
作者：
Seshasayee Ankireddi;Henry T. Y. Yang
一个最优控制方法，涉及采样数据被认为是用于地震和风工程应用。该结构被建模为一个连续的系统连接到一个离散时间控制器使用零阶采样保持设备。两个建筑物的主动基础隔震器和一个163米高的平面框架与主动质量阻尼器的例子被认为是。以1940年埃尔森特罗地震（NS分量）为例，将带有基础隔震器的建筑物置于激励输入下，而平面框架置于假定的正弦阵风下，其周期与框架的周期接近。控制响应（有和没有时间延迟）进行了研究。为了进一步分析控制设计的特点，与基础隔震器的建筑实例进行了其他五个不同的地震激励记录。控制性能和有效性的趋势，并进行了讨论。结果表明，这样的系统是潜在的适合于实施在民用基础设施的振动控制，这种潜力变得更加现实，目前的趋势，在软件开发和数字计算机的使用越来越多。版权所有© 1999 John Wiley & Sons，Ltd。
An optimal control method involving sampled data is considered for use in earthquake and wind engineering applications. The structure is modelled as a continuous system attached to a discrete-time controller using zero-order sample-and-hold devices. Examples of two buildings with active base isolators and a 163 m tall planar frame with an active mass damper are considered. The buildings with the base isolators are subjected to excitation input using the 1940 El Centro earthquake (NS component) as an example, while the planar frame is subjected to assumed sinusoidal gusts with a period close to that of the frame. The controlled responses (with and without time delays) are studied. To further analyze the features of the control designs, the building examples with base isolators are subjected to five other different earthquake excitation records. Trends in control performance and effectiveness are presented and discussed. The results suggest that such systems are potentially suited for implementation in the vibration control of civil infrastructures; such potentiality becomes more realistic with the current trends in software development and the increased use of digital computers. Copyright © 1999 John Wiley & Sons, Ltd.