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首页> 外文期刊>Journal of structural engineering >Large-Scale Experimental Studies of Structural Control Algorithms for Structures with Magnetorheological Dampers Using Real-Time Hybrid Simulation
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Large-Scale Experimental Studies of Structural Control Algorithms for Structures with Magnetorheological Dampers Using Real-Time Hybrid Simulation

机译：磁流变阻尼器结构实时混合仿真的结构控制算法大型实验研究

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Real-time hybrid simulations using large-scale magnetorheological (MR) dampers were conducted to evaluate the performance of various structural control strategies to control the seismic response of a three-story steel-frame building. Magnetorheological dampers were installed in the building to limit the story drift to less than 1.5% under the design-basis earthquake (DBE). The laboratory specimens, referred to as experimental substructures, were two individual MR dampers, with the remainder of the building modeled as a nonlinear analytical substructure. The experimental technique enables an ensemble of ground motions to be applied to the building, resulting in various levels of damage, without the need to repair the experimental substructures because the damage will be within the analytical substructure. Five different damper control algorithms, including passive and semiactive control algorithms, were selected. An ensemble of five ground motions scaled to the DBE was used for the real-time hybrid simulations to obtain statistical responses of the structure for each control. The real-time hybrid simulation results show that the MR dampers can control the drift, enabling the performance objective of 1.5% maximum story drift to be achieved. Although some semiactive controllers show better performance for a specific ground motion, the response statistics from the realtime hybrid simulations show that the overall performance of the semiactive control algorithms with the selected user-defined parameters is similar to that for the passive controller for the three-story building used in this study. A comparison of real-time hybrid simulation results with numerical simulation results using OpenSees was conducted to further gain insight into the performance of the damper control algorithms observed in the real-time hybrid simulations.
机译：进行了使用大型磁流变（MR）阻尼器的实时混合仿真，以评估各种结构控制策略的性能，以控制三层钢框架建筑的地震响应。在建筑物中安装了磁流变阻尼器，以将设计基准地震（DBE）下的楼层漂移限制在1.5％以内。实验室标本被称为实验子结构，是两个单独的MR阻尼器，建筑物的其余部分建模为非线性分析子结构。实验技术使得能够将整体地面运动应用于建筑物，从而导致各种程度的损坏，而无需修复实验子结构，因为损坏将在分析子结构内。选择了五种不同的风门控制算法，包括被动和半主动控制算法。实时混合仿真使用了按DBE比例缩放的五个地面运动的合奏，以获得每个控件的结构统计响应。实时混合仿真结果表明，MR阻尼器可以控制漂移，从而实现了最大故事漂移为1.5％的性能目标。尽管某些半主动控制器对于特定的地面运动表现出更好的性能，但实时混合仿真的响应统计数据表明，具有选定用户定义参数的半主动控制算法的总体性能类似于针对以下三种情况的被动控制器的总体性能：本研究中使用的故事构建。进行了实时混合仿真结果与使用OpenSees的数值仿真结果的比较，以进一步了解实时混合仿真中观察到的阻尼器控制算法的性能。

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