【摘要】 采用振动控制算法中的线性二次型最优控制,研究了在地震作用下的结构控制作用系统参数优化设计,即假定控制器数量、位置,对控制作用参数进行优化。将选取的主结构简化为多自由度模型,将MTMD(多重调谐质量阻尼器)对结构的反力与地震荷载共同作为结构的荷载输入分析;基于对主结构多模态耦合作用的考虑以及MTMD加载位置的初步假定,以二次型性能指标对系统状态方程加以控制。得到控制效果与利用最优参数法的结构控制效果做进一步比较验证。最后利用ANSYS优化设计模块,对已得到的控制器参数进行二次优化。更多还原

【Abstract】 In this paper the linear quadratic optimal control for algorithms of vibration structural control is used to research optimal design for structural control system under earthquake actions.The main structure is simplified as a multi-degree-of-freedoms(MDOF) system.Both the MTMD force and seismic action are inputted into a structure as a common structural load.Based on the multi-modal coupling of main structure and the initially assumpting of the MTMD(Multi-Tuned Mass Damper) loading location,the system state equation is controlled by linear quadratic function index.The effectivity of the controllor is verified.Finally,by using the optimal design modules of ANSYS,the parameters of the passive controller design are optimized again更多还原