建筑结构在地震作用下的主动控制时滞补偿探讨 |
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引用本文: | 李春祥 韩传峰. 建筑结构在地震作用下的主动控制时滞补偿探讨[J]. 西安建筑科技大学学报(自然科学版), 1998, 30(2): 138-141,172 |
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作者姓名: | 李春祥 韩传峰 |
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作者单位: | 同济大学结构学院(李春祥),山东建筑工程学院(韩传峰) |
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摘 要: | 利用AR模型实时在线向前预测地震加速度,AR时间序列步长和控制时间步长可选取较优的比例关系,利用卡尔曼滤波作状态估计,对状态变量向前作一最优预测,导出了适用瞬时最优开环,闭环和开闭环时滞补偿控制算法理论公式。
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关 键 词: | 地震 主动控制 AR模型 时滞 建筑结构 结构抗震 |
Discussion on time delay compensation of active control of building structures under earthquakes |
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Abstract: | Seismic excitations are expressed by using an AR model, excitation information is predicted forward in this paper. The better proportion is obtained between the AR sampling period and the control sampling period. The state vector is estimated using by Kalman filter equations. The state vector is predicted forward. The time delay compensationg control algorithm is derived which is suitable for instantaneous optimal Open Loop, Closed Loop and Closed Open Loop control. |
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Keywords: | earthquake active control AR model time delay optimum prediction |
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