Controllers for Benchmark Base Isolated Building with Linear and Friction Isolation System
Controllers for Benchmark Base Isolated Building with Linear and Friction Isolation System
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具有线性和摩擦隔离系统的基准基础隔离建筑控制器
DOI：
10.1061/40700(2004)144
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
S. Narasimhan
中科院分区：
文献类型：
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作者：
Satish Nagarajaiah;S. Narasimhan
本文提出了用于线性和摩擦隔离系统的三维基础隔离建筑基准问题的示例控制器。卡尔曼滤波器用于根据绝对加速度测量来估计状态。 Kanai-Tajimi 滤波器用于更好地向控制器通报地震激励的频谱内容。开发了线性隔离系统基准问题的面向降阶控制的模型。 H2/Linear Quadratic Gaussian controller is presented for the active case;此外，还针对半主动情况提出了截断最优控制器。磁流变流体阻尼器用于半主动情况下的控制，致动器用于主动情况下的控制。还针对非线性摩擦隔离系统的基准问题提出了“skyhook”半主动控制器。给出了被动、半主动和主动情况的计算结果。详细比较了线性隔震系统和非线性摩擦隔震系统的基础隔震结构（有控制和无控制）在一组强近场地震中的基准性能指标。本文演示的建模和样本控制设计可用于形成研究各种主动和半主动控制策略的基础，这些策略将由基准研究的参与者开发，用于线性和摩擦基础隔离
Sample controllers for three dimensional base isolated building benchmark problem with linear and frictional isolation system are presented in this paper. Kalman filter is used to estimate the states based on absolute acceleration measurements. Kanai-Tajimi filters are used to better inform the controller of the spectral content of the earthquake excitations. Reduced order control oriented model of the benchmark problem with linear isolation system is developed. H2/Linear Quadratic Gaussian controller is presented for the active case; additionally, a clipped optimal controller is presented for the semiactive case. Magneto-Rheological fluid dampers are used for control in the semiactive case and actuators are used for control in the active case. A ‘skyhook’ semiactive controller is also presented for the benchmark problem with nonlinear friction isolation system. Computed results of the passive, semiactive, and active cases are presented. Detailed comparisons of benchmark performance indices for base isolated structures with linear isolation system and nonlinear friction isolation system, with and without control, for a set of strong near field earthquakes are presented. The modeling and sample control designs demonstrated in this paper can be used to form the basis for studying wide variety of active and semiactive control strategies‐to be developed by the participants in the benchmark study‐for linear and frictional base isolated