基于广义预测控制的结构半主动控制研究

相对于主动控制和被动控制来讲,半主动控制具有一些更好的特色,对结构控制的应用有着较强的吸引力。本文以可调液柱阻尼器(TLCD)作为作动器来实现结构半主动控制,考虑到TLCD具有非线性阻尼特性,为了使结构控制能够顺利实现,本文采用了阶跃控制函数。为了使TLCD能够应用于实际结构,本文研究了基于离散状态方程的广义预测控制方法,并提出了单向控制策略。本文最后给出了计算实例。算例表明这一方法是有效的。

Structural Semi-active Control Based on Generalized Predictive Control

Semi active systems are attractive for structural control applications due to the available features of both passive and active systems. A tuned liquid column damper is used to realize the structural semi active control, where the nonlinear characteristic of TLCD dampers is considered, the step function is taken as the systemic control function to ensure structural control realization. And the generalized predictive control based on discrete state equations is and a single direction control strategy is presented for applying the TLCD to the actual structures, and a numerical example demonstrates shows the efficiency of the method.