论文标题
使用ATMD建筑物的滑动模式控制器的调谐算法
A tuning algorithm for a sliding mode controller of buildings with ATMD
论文作者
论文摘要
本文提出了一种基于Ackermann公式的滑动模式控制器（SMC）的自动调整算法，该算法削弱了安装在其顶层上的主动调谐质量阻尼器（ATMD）的地震建筑的结构振动。 SMC的开关增益和滑动表面是通过建议的调整算法设计的，以最大程度地减少顶层位移或施加到ATMD的控制力来抑制结构振动。此外，调整算法选择SMC参数以确保以下闭环特性：1）结构和ATMD的瞬态响应非常快速且阻尼； 2）在地震激发的频带下，控制力以及建筑物和ATMD的位移和速度在可接受的极限之内。提出的SMC表现出对未建模动态的鲁棒性，例如阻尼器的摩擦。降低量表结构的实验结果允许证明SMC调整算法的效率，该算法与传统的线性二次调节器（LQR）以及最佳滑动模式控制器（OSMC）进行了比较。
This paper proposes an automatic tuning algorithm for a sliding mode controller (SMC) based on the Ackermann's formula, that attenuates the structural vibrations of a seismically excited building equipped with an Active Tuned Mass Damper (ATMD) mounted on its top floor. The switching gain and sliding surface of the SMC are designed through the proposed tuning algorithm to suppress the structural vibrations by minimizing either the top floor displacement or the control force applied to the ATMD. Moreover, the tuning algorithm selects the SMC parameters to guarantee the following closed-loop characteristics: 1) the transient responses of the structure and the ATMD are sufficiently fast and damped; and 2) the control force, as well as the displacements and velocities of the building and ATMD are within acceptable limits under the frequency band of the earthquake excitation. The proposed SMC shows robustness against the unmodeled dynamics such as the friction of the damper. Experimental results on a reduced scale structure permits demonstrating the efficiency of the tuning algorithm for the SMC, which is compared with the traditional Linear Quadratic Regulator (LQR) and with the Optimal Sliding Mode Controller (OSMC).
