【摘要】 将被控结构简化为单自由度体系,建立了结构-MTMD系统的力学模型和运动方程,对MTMD的参数及其对结构振动控制效果的影响进行了研究。结果表明:MTMD的总质量比、阻尼比、中心频率比、频带宽度和TMD的个数等参数对结构振动控制有重要影响,设计中应根据实际结构的具体情况对MTMD的各种参数进行必要的优化,以获取最优的控制效果。更多还原

【Abstract】 Simplifying the controlled structure as a single-degree of freedom structural system,the calculating model of structure-MTMD system is developed and the motion differential equation is derived. The influence regulations of MTMD parameters on dynamic magnification factor are fully analyzed. The result shows that the total mass ratio,the damping ratio,the center frequency ratio, frequency bandwidth and the total number of TMD have very important effect on structural vibration control.Therefore,in order to get the optimal control effect, necessary optimization of MTMD parameters should be done according to the specific case of actual structure.更多还原