【摘要】 风振控制是高层建筑结构抗风设计的一项重要内容。本文对磁流变阻尼器半主动控制系统进行了优化设计 ,首先对基于现代控制理论的半主动控制算法进行了讨论 ,通过模拟分析 ,比较了分别基于经典线性最优控制算法和瞬时最优控制算法下控制系统的控制效果 ;其次对控制律的选取进行了研究 ,通过算例分析 ,对分别采用“开 -关”型控制律和改进型控制律时 ,系统的控制效果进行了比较分析。通过选择合适的控制算法和控制律 ,使控制系统达到优化。更多还原

【Abstract】 Wind_induced vibration is an important item in tall building design.In the paper,the semi_active control system with MR (magneto_rheological) damper is optimized.First of all,the semi_active control algorithm based on moderm optimal control theory is proposed.By simulation analysis,the control effects based on the classic linear optimal control theory and on the instantaneous optimal control theory are compared.And then,the selection of control strategy is studied.The control effects in accordance with the"on_off"control strategy and the"Betterment"control strategy are compared via example.The control system reaches the optimum by choosing the right control algorithm and control strategy.更多还原