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首页> 外文会议>Conference on Active and passive smart structures and integrated systems; 20090309-12; San Diego, CA(US) >Nonlinear decentralized control of seismically excited civil structures
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Nonlinear decentralized control of seismically excited civil structures

机译：地震激励土木结构的非线性分散控制

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摘要

The dynamic behaviour of civil structures under strong earthquakes is usually nonlinear or inelastic. Conventional control approach is almost based on linear theory, such as the linear quadratic regulator (LQR) design. One of the common characteristics shared by seismically excited civil structures is a distinct subsystem property, which indicates there are only several floors of civil structures with nonlinear or inelastic vibration and the other with linear vibration. In this study, a robust control approach combining decentralized control with adaptive fuzzy control is proposed to treat the nonlinear control for civil structures. The structural system is decomposed into several artificially subsystems, while the different subsystem is adopted the corresponding control algorithm. The input-to-state stability of the entire system can be guaranteed by the proposed control method, and an H infinity performance is achieved through a subsystem with the proposed controller. Numerical examples are presented to demonstrate the effectiveness and robustness of the proposed controller.
机译：强烈地震作用下的土木结构动力特性通常是非线性或非弹性的。传统的控制方法几乎是基于线性理论的，例如线性二次调节器（LQR）设计。地震激励的土木结构共有的一个共同特征是子系统的独特属性，这表明土木结构只有几层具有非线性或非弹性振动，而另一层则具有线性振动。在这项研究中，提出了一种将分散控制与自适应模糊控制相结合的鲁棒控制方法来处理土木结构的非线性控制问题。结构系统被分解为几个人为的子系统，而不同的子系统则采用相应的控制算法。所提出的控制方法可以保证整个系统的输入状态稳定性，并且通过具有所提出的控制器的子系统可以实现H无限性能。数值例子表明了所提出控制器的有效性和鲁棒性。

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