【摘要】 根据线性最优主动控制的原则,提出了同时控制位移、速度和加速度的最优主动控制策略,导出修正Riccati方程,由此利用磁流体阻尼器,对巨型减振框架结构的地震反应进行了半主动控制,表明该结构体系的半主动控制能显著地降低主框架的振动位移,能有效地降低主、次框架的振动加速度.更多还原

【Abstract】 Based on the principles of linear optimal active control,the algorithm of an optimal active control has been developed to command the structure displacement,velocity and acceleration simultaneously,and the revisal Riccati equation has been derived.Moreover,the earthquake response of vibration-absorption megaframe structure has been controlled semi-actively by means of magnetorheological damper.The result seems to indicate that the semi-active control may be more effectively suppress the vibration displacement response of the main frame,and more significantly reduce the vibration acceleration response of the main and the secondary frame.更多还原