巨型钢框架MR智能减震结构的地震反应分析
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摘要
采用wilson-Θ法求解巨型钢框架MR智能减震结构运动方程,提出基于最优主动控制算法(LQR算法)的双出杆剪切阀式MR阻尼器的半主动控制算法,并选择普通巨型钢框架结构(主结构3层,次结构3层)和巨型钢框,用LQR算法和半主动控制算法分析最大地震反应及控制效果.结果表明,巨型钢框架MR智能减震结构比普通的巨型钢框架结构优越,MR阻尼器能够有效地减小主结构的地震反应.
The wilson-Θ method is used to solve basic vibration equations of the vibration-reduction steel mega-frame structure with MR intelligent dampers.The semi-active control algorithm of the double pole shear valve mode MR damper is proposed,which is based on the optimal active control algorithm (LQR).The uncontrolled steel mega-frame structure (3 stories in main structure, 3 stories insub-structure) and the vibration-reduction steel mega-frame structure with MR intelligent dampers are analyzed.The LQR algorithm and the semi-active control algorithm are separately employed to compute the maximal seismic responses and the vibration-reduction effect of the vibration-reduction steel mega-frame stucture. The results of simulated computation imply that the vibration-reduction steel mega-frame structure with MR intelligent dampers is much better than the uncontrolled steel mega-frame.The MR dampers can significantly reduce the seismic response of the main structure in the steel mega-frame structure.
The wilson-Θ method is used to solve basic vibration equations of the vibration-reduction steel mega-frame structure with MR intelligent dampers.The semi-active control algorithm of the double pole shear valve mode MR damper is proposed,which is based on the optimal active control algorithm (LQR).The uncontrolled steel mega-frame structure (3 stories in main structure, 3 stories insub-structure) and the vibration-reduction steel mega-frame structure with MR intelligent dampers are analyzed.The LQR algorithm and the semi-active control algorithm are separately employed to compute the maximal seismic responses and the vibration-reduction effect of the vibration-reduction steel mega-frame stucture. The results of simulated computation imply that the vibration-reduction steel mega-frame structure with MR intelligent dampers is much better than the uncontrolled steel mega-frame.The MR dampers can significantly reduce the seismic response of the main structure in the steel mega-frame structure.
引文
[1]郑廷银,赵惠麟.高层钢结构巨型钢框架体系的二阶位移实用计算[J].东南大学学报:自然科学版,2002,32(5):794-798.
[2]陈以新.Matlab在结构动力分析中的应用[J].福建建筑,1999(2):44-47.
[3]赵更新.土木工程结构分析程序设计[M].北京:中国水利水电出版社,2002.
[4]隋莉莉,欧进萍.半主动磁流变减振驱动器的工作原理及应用[J].哈尔滨建筑大学学报,2002,35(3):9-13.
[5]隋莉莉,欧进萍.MR减振驱动器用于结构振动控制的算法研究[J].应用力学学报,2002,19(3):144-148.
[2]陈以新.Matlab在结构动力分析中的应用[J].福建建筑,1999(2):44-47.
[3]赵更新.土木工程结构分析程序设计[M].北京:中国水利水电出版社,2002.
[4]隋莉莉,欧进萍.半主动磁流变减振驱动器的工作原理及应用[J].哈尔滨建筑大学学报,2002,35(3):9-13.
[5]隋莉莉,欧进萍.MR减振驱动器用于结构振动控制的算法研究[J].应用力学学报,2002,19(3):144-148.
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