【摘要】 提出了抑制水平振动的磁流变式调谐液柱阻尼器(MR-TLCD)模型,建立了单自由度结构——MR-TLCD的耦合运动方程。从系统动力方程出发,根据离复位控制策略,确定了MR-TLCD与单自由度结构相互作用过程中的合理阻尼大小。数值计算中,利用谐波叠加法模拟风荷载作用于该系统,并通过调节MR-TLCD的电压进行实时控制。仿真结果说明了在离复位控制策略下,MR-TLCD用于结构风振控制的合理性和有效性,是理想的半主动控制装置。更多还原

【Abstract】 Magnetorheological tuned liquid column damper(MR-TLCD) is a new kind of device for vibration control.It has a good performance and can be realized in project easily.A theoretical model of MR-TLCD for suppressing horizontal vibration is developed.The structure with single degree of freedom—MR-TLCD interactive equations are formulated.To start from the dynamic equations of system,the reasonable damping of MR-TLCD is determined according to the off-and-towards-equilibrium control strategy.In numerical calculation,wind load which is simulated by superposition of harmonic acts on the system.The control in time is carried out by adjusting the voltage of MR-TLCD.The simulation results show that the proposed is feasible and effective.Besides,MR-TLCD is an optimal semi-active control device.更多还原