A preliminary study on adaptive tuned mass damper with variable mass

摘要：

　　Tuned mass damper(TMD)is a traditional vibration control device and has a wide application in the human-induced vibration control of pedestrian bridges.TMD will have a good vibration control effect when it is tuned to the structural frequency.In this paper,an adaptive tuned mass damper(ATMD)with variable mass is proposed.The structural instantaneous frequency is identified through Hilbert-Huang transformation(HHT),and then,the mass of ATMD will be adjusted through HHT-based control algorithm by actuating devices in real time.In order to verify the control effect of ATMD,in the case study,a primary structure coupled with an ATMD is simulated under harmonic excitations and human-induced excitations.Two optimal passive TMDs are used for comparisons and the effect of detuning is considered,due to the cumulative damage or deterioration of primary structure.It is found that the ATMD has better vibration control effect than optimal passive TMDs.

关键词： Human-induced vibration Tuned mass damper (TMD) Adaptive tuned mass damper (ATMD) Hilbert-Huang transformation (HHT) Variable mass

作者: Liangkun Wang Weixing Shi Ying Zhou

作者单位: Research Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai,China Research Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai,China

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 773-783

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）