Control Structure Interaction of Electromagnetic Mass Damper System for Structural Vibration Control
Control Structure Interaction of Electromagnetic Mass Damper System for Structural Vibration Control
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DOI：
10.1061/(asce)0733-9399(2008)134:5(428
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发表时间：
2008-05
期刊：
影响因子：
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通讯作者：
Chunwei Zhang;J. Ou
中科院分区：
文献类型：
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作者：
Chunwei Zhang;J. Ou
为了研究新型电磁质量阻尼器（EMD）控制系统与试验结构之间的控制-结构-相互作用（CSI）效应，本文首先建立了三个计算模型。然后，将典型的驱动电压施加到EMD系统的伺服放大器，以激励结构，并检查EMD系统在结构中实施时的动态行为。此外，测试结果与基于所提出的参数模型的预测进行了比较，即在线检查。最后，通过振动台试验，验证和比较了EMD控制系统在结构地震反应控制中的有效性。试验结果表明，只有充分考虑CSI效应（尤其是高阶CSI效应），才能准确预测EMD系统的在线动态特性，充分发挥其控制性能。这对于在采用这种EMD系统抑制结构振动时实现最高性能至关重要。
To investigate the effect of control-structure-interaction (CSI) between the innovative electromagnetic mass damper (EMD) control system and the test structure, three computational models are first developed in this paper. Then, typical driving voltages are applied to the servo-amplifier of the EMD system to excite the structure and to examine the dynamic behavior of the EMD system when it is implemented into the structure. Furthermore, the test results are compared with the predictions based on the proposed parametric models, namely on-line examination. Finally, shaking table tests of structural seismic response control employing the EMD control system are conducted to validate and compare the effectiveness of those parametric models. All the test results have shown that only when the CSI effect (especially the higher-order CSI effect) is fully considered, can the on-line dynamical property of the EMD system be accurately predicted and its control performance fully exerted. This is essential to achieve the highest performance when employing such EMD systems in suppressing structural vibrations.