Hybrid active mass damper (AMD) vibration suppression of nonlinear high‐rise structure using fuzzy logic control algorithm under earthquake excitations
Hybrid active mass damper (AMD) vibration suppression of nonlinear high‐rise structure using fuzzy logic control algorithm under earthquake excitations
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DOI：
10.1002/stc.402
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发表时间：
2011-10
影响因子：
5.4
通讯作者：
Luyu Li;G. Song;J. Ou
中科院分区：
文献类型：
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作者：
Luyu Li;G. Song;J. Ou
主动质量阻尼器（AMD）控制土木结构是近年来引起广泛关注的问题。然而，在地震作用下，利用AMD对非线性结构，特别是高层建筑进行控制的研究较少。本文提出了一种基于模糊逻辑的控制算法，利用AMD装置对地震激励下的非线性高层结构进行控制。对于高层建筑在地震激励下的控制，由于振动模态的复杂性，模糊控制器需要输入很多，这可能导致模糊规则爆炸。为了解决这一问题，基于二次型性能指标，考虑结构的所有状态，提出了广义输入模糊控制。AMD控制系统可能会放大高层非线性建筑的层间位移，这被认为是层间反应放大（伊拉）现象。为了避免这一问题，提出了使用AMD和层间阻尼器的控制方案来控制高层结构的非线性振动。我们使用20层Benchmark非线性结构进行数值研究。数值模拟结果表明，AMD和层间阻尼器的组合可以消除伊拉现象，并实现更好的振动抑制比单独的AMD或单独的层间阻尼器，不仅相对于地面的位移，而且层间反应。版权所有© 2010约翰威利父子有限公司.
Active mass damper (AMD) control of civil structures has attracted much attention in recent years. However, there are few researches on the control of nonlinear structure using AMD under earthquake excitation, especially for high‐rise building. In this paper, a fuzzy logic‐based control algorithm was developed to control a nonlinear high‐rise structure under earthquake excitation using AMD device. For the control of a high‐rise building under earthquake excitation, due to the complexity of vibration modes, many inputs are needed for the fuzzy controller, and this may cause the explosion of fuzzy rules. To solve this problem, generalized inputs for fuzzy control were proposed by considering all the states of the structure based on a quadratic performance index. An AMD control system may magnify the interstory drift of a high‐rise nonlinear building, which is regarded as Interstory Response Amplification (IRA) phenomenon. To avoid this problem, a control scheme of using both an AMD and interstory dampers was proposed to control the nonlinear vibration of a high‐rise structure. We used a 20‐story Benchmark nonlinear structure for the numerical studies. Numerical simulations show that the combination of an AMD and interstory dampers can eliminate the IRA phenomenon and achieve better vibration suppression than either an AMD alone or interstory dampers alone, in not only displacements relative to ground but also interstory response. Copyright © 2010 John Wiley & Sons, Ltd.