大跨度连体高层结构时域子结构振动控制研究

Analysis of Substructure Control of Long-span Connected High-rise Structure in Time Domain

通过在子结构中设定控制目标,通过引入大质量法在时域提出了子结构LQR控制算法。数值模拟在一大跨度的连体高层结构中进行,控制效果的对比表明,提出的子结构控制算法可以达到与传统控制算法相当的控制效果,同时相较传统算法,时域中的子结构LQR控制算法其需要的反馈信息传感器个数和控制方程维数都将大大减小,从而可以在很大程度上提高计算效率和实时控制效果。

By setting up control target in certain substructure,a substructure control algorithm in time domain is proposed by introducing large mass method.Numerical simulation is then performed in a long-span connected high-rise structure.The comparison of the control effectiveness shows that the proposed substructure control algorithm has similar control effectiveness as that of the traditional control algorithm.Moreover,the number of sensors to obtain feedbacks and the dimension of the control equation are largely reduced.And thus the computation effectiveness is enhanced and the time delay problem can be somehow reduced.