Semi-active Tuned Mass Damper with Phase Control for Structural Vibration Mitigation

摘要：

　　The present study aims at demonstrating the feasibility of semi-active phase control tuned mass damper(PC-TMD)implemented in structures for structural vibration mitigation.The semi-active friction force is applied at certain situations so that the PC-TMD moves along the design trajectory to adjust the phase of PC-TMD relative to the structure to back to the 90° phase lag.Thus,the PC-TMD can develop the maximum power flow to achieve superior structural vibration reduction.By controlling the instantaneous phase of PC-TMD,the proposed PC-TMD not only improves the control performance but also prevents the TMD power from flowing back to the main structure.Furthermore,although the PC-TMD is a damping-variable-type TMD,the detuning issue can also be mitigated through adjusting the PC-TMD motion to the right phase.The feasibility of application of the PC-TMD is verified through numerical simulations.The simulation results reveal the robustness of the PC-TMD,particularly when the PC-TMD is detuning to the structure.Therefore,the PC-TMD outperforms the conventional TMD in terms of suppressing the structural responses.

关键词： tuned mass damper phase control power flow theory semi-active control detuning issue

作者: L.L.Chung Y.A.Lai C.S.W.Yang

作者单位: National Center for Research on Earthquake Engineering,Taipei,Taiwan;Department of Civil Engineering Department of Civil Engineering,National Taiwan University,Taipei,Taiwan School of Civil and Environment Engineering,Georgia Institute of Technology,Atlanta,USA

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: 3372-3382

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）