WPT-based modal control on distributed structures with MRF-04K damper
WPT-based modal control on distributed structures with MRF-04K damper
复制标题
采用 MRF-04K 阻尼器的分布式结构上基于 WPT 的模态控制
DOI:
10.1007/s12209-011-1640-2
复制
发表时间:
2011-12
影响因子:
7.1
通讯作者:
Huang, Pengyun1
中科院分区:
文献类型:
--
作者:
Lin, Wei1;Li, Zhongxian2;Zhang, Genming1;Huang, Pengyun1
The magnetorheological (MR) fluid damper-based semiactive control systems have received considerable attention for protecting structures against natural hazards such as strong earthquakes and high winds. In this paper, a novel modal controller using wavelet packet transform (WPT) is proposed for the vibration control of distributed structures. In the proposed control system, the WPT method is utilized to decompose the acceleration measurement and select the modes containing most of the WPT energy component as the dominant modes. Then, a modal controller is designed to control the dominant modes and the optimal active control force is solved. Finally, Clipped-optimal control law is adopted to determine the voltage applied to each MR damper. A Kalman-filter observer, which estimates the full controlled modal states from local accelerometer feedbacks, is designed for rendering the controller to be more applicable to distributed structures with a large number of degrees of freedom. A numerical example of a stadium roof structure installed with MRF-04K damper is presented. The effectiveness of the controller is evaluated under both Tianjin and El Centro earthquake excitations. The superior performance and adaptability of the controller for versatile loading conditions are demonstrated through the comparison with traditional truncated modal controller.
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影响因子:
2.2
作者:
H. Jung;B. Spencer;Y. Ni;In‐Won Lee
通讯作者:
H. Jung;B. Spencer;Y. Ni;In‐Won Lee
DOI:
--
发表时间:
1999
期刊:
--
影响因子:
--
作者:
S. Dyke;F. Yi;J. Carlson
通讯作者:
S. Dyke;F. Yi;J. Carlson
影响因子:
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作者:
R. Carvalhal;V. L. Júnior;M. Brennan
通讯作者:
R. Carvalhal;V. L. Júnior;M. Brennan
影响因子:
5.4
作者:
E. A. Johnson;B. Erkus
通讯作者:
E. A. Johnson;B. Erkus
DOI:
10.1061/(asce)0887-3828(2008)22:4(228
发表时间:
2008-08
影响因子:
2.5
作者:
A. Cigada;A. Caprioli;M. Redaelli;M. Vanali
通讯作者:
A. Cigada;A. Caprioli;M. Redaelli;M. Vanali