【摘要】 笔者研究多重调谐质量阻尼(MTMD)系统对不规则大空间板梁结构竖向振动的控制作用,首先在SAP2000中建立武汉大学万林艺术博物馆数值模型,基于数值模型对结构进行模态分析,筛选出在人行作用力下容易产生结构共振的区域,进而在筛选出的区域进行MTMD减振设计。基于数值模型进行动力响应分析,对比验证MTMD减振设计对结构振动的抑制效果。研究表明MTMD减振方案能有效地够提高万林艺术博物馆结构的舒适性能。在此基础上,采用MTMD对结构进行振动控制,通过人群激励测试,结果分析表明,MTMD对结构一阶主频振动响应控制效果明显,达到了设计指标要求。更多还原

【Abstract】 The control function of multiple tuned mass dampers( MTMD) on irregular spatial plate and beam structure is studied. Firstly,SAP2000 is used to simulate Wuhan University Wanlin Art Museum,which is used for modal analysis,and the structure resonance region under people forces was screen out,furthermore,MTMD damping design was done. The simulation results show that MTMD damping can effective improve the comfort performance. And the MTMD response control effect is obvious on the first-order frequency vibration structure to meet the design requirements.更多还原