Modal parameter identification of structures with closely spaced modes using an improved hht method

摘要：

　　In this paper,an improved Hilbert-Huang transform(HHT)method,which combines the wave group(WG)signal pre-processing technique and the orthogonal HHT method,has been proposed and utilized for identifying the natural frequencies and damping ratios of structures with closely spaced modes.

关键词： Modal parameter identification the improved Hilbert-Huang transform the wave group the orthogonal intrinsic mode function closely spaced modes

作者: T.L.Huang X.Wan N.B.Wang M.L.Lou H.P.Chen

作者单位: School of Civil Engineering,Central South University,Changsha 410075,China School of Civil Engineering,Tongji University,Shanghai 200092,China Department of Engineering Science,University of Greenwich,Chatham Maritime,Kent,ME4 4TB,UK

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: 218-229

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）