The use of magnetorheological (MR) dampers in combination with other control devices in a hybrid mode to enhance the control of the seismic responses of building structures is a subject of topical interest. This paper reports on the development of hybrid control schemes using different combinations of MR and tuned mass dampers (TMDs) to control the earthquake responses of building frames. The performance of the hybrid control schemes was evaluated by comparing the results with those of purely semi-active control schemes using three and four MR dampers consecutively placed in the bottom storeys of the frame. For the comparison, responses were obtained using four control strategies, namely a linear quadratic regulator with a clipped algorithm, passive-on, passive-off and a newly developed control strategy called velocity tracking control, which is especially suitable for partially observed states. The study showed that a maximum increase of 40–45% control of response could be achieved using a combination of a TMD and fewer MR dampers.

中文翻译：

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使用调谐质量和磁流变阻尼器的建筑物混合地震控制

磁流变（MR）阻尼器与其他控制设备以混合模式结合使用以增强对建筑结构的地震响应的控制已成为人们关注的主题。本文报告了使用MR和调谐质量阻尼器（TMD）的不同组合来控制建筑框架地震响应的混合控制方案的发展。通过将结果与纯半主动控制方案的结果进行比较来评估混合控制方案的性能，该纯半主动控制方案使用连续放置在框架底部楼层的三个和四个MR阻尼器。为了进行比较，使用四种控制策略获得了响应，即带有限幅算法的线性二次调节器，无源接通，无源断开和最新开发的称为速度跟踪控制的控制策略，这尤其适用于部分观察的状态。研究表明，结合使用TMD和更少的MR阻尼器，可以最大程度提高响应控制40-45％。