多层结构MTMD振动控制系统参数优化研究
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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。
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
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
引文
[1]刘鸣.结构振动控制的应用及若干问题[J].长安大学学报.2003,20(4):5-12.
[2]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[3]Xu Y L,Teng J.Optimum design of active/passive control devices for tall buildings under earthquake excitation[J].The Structural Design of TallBuildings,2002 11(2):109-127.
[4]滕军.结构振动控制系统优化理论与方法[D].哈尔滨:哈尔滨建筑工程学院,1992.
[5]滕军,刘季.结构振动控制系统控制作用最优分布[J].同济大学学报,1993,21(3):323-329.
[6]Teng J,Liu J.Control devices optimal installment for new vibration control system of multi-structure connection[C]//Proceedings of 10WCEE.1992,4:2069-2072.
[7]Soong TT.Active Structural Control-Theory and Practice[M].New York:John Wiley,1990.
[2]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
[3]Xu Y L,Teng J.Optimum design of active/passive control devices for tall buildings under earthquake excitation[J].The Structural Design of TallBuildings,2002 11(2):109-127.
[4]滕军.结构振动控制系统优化理论与方法[D].哈尔滨:哈尔滨建筑工程学院,1992.
[5]滕军,刘季.结构振动控制系统控制作用最优分布[J].同济大学学报,1993,21(3):323-329.
[6]Teng J,Liu J.Control devices optimal installment for new vibration control system of multi-structure connection[C]//Proceedings of 10WCEE.1992,4:2069-2072.
[7]Soong TT.Active Structural Control-Theory and Practice[M].New York:John Wiley,1990.
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