【摘要】 调谐质量阻尼器质量块在运动过程中产生的摩擦力不可忽视,在设计过程中可加入摩擦阻尼装置产生摩擦力,这些摩擦力能够消耗输入建筑物主体的地震能量。该文通过分析单自由度结构体系,建立摩擦力与阻尼之间的关系,利用MATLAB语言编制地震响应时程分析程序,选用LQR算法作为控制算法,以实例分析在多遇地震作用下MTMD系统的减震效果。结果表明,可控摩擦力的MTMD系统非常适用于高耸结构的减震控制,该系统能够随地震反应实时产生足够的摩擦阻尼消耗地震输入结构物的能量,达到减小结构地震响应的目的。更多还原

【Abstract】 The friction of tuned mass damper may be generated in the process of mass moving and can also be produced by the friction damper device in design.The friction can dissipate the seismic energy inputting to the main building.The relationship of friction and damping is established here by analyzing the single freedom system.MATLAB program and LQR control algorithm are compiled to conduct and analyze the damping effects of MTMD for the seismic energy under frequently occurred earthquakes.The results show that this friction damper can effectively dissipate the seismic energy and reduce the seismic response.更多还原