HHT based railway bridge structural health monitoring

Norden Huang, Kang Huang

研究成果: 雜誌貢獻期刊論文同行評審

7 引文 斯高帕斯(Scopus)


The direct inspection method for bridge structural health monitoring has certain limitations. We have developed a new Hilbert-Huang Transform (HHT) based method for nondestructive instrument structure health monitoring. When applied to Railway bridges, this new method depends on a transient test load and simple data collection. The nuclear of the method is the newly developed HHT for nonstationary and nonlinear time series analysis, which consists of the Empirical Mode Decomposition and Hilbert Spectral Analysis. The final decision on the health of the bridge structure is based on the nonlinear characteristic of the data, on the comparison between the free and the forced vibration frequencies, and on the bridge response to light and heavy loads. This method enjoys many advantages: no prior data required, simple data collection, minimum traffic disruption, and precise and nuance quantitative answers. The result of a case study will be presented, which established the feasibility of this new approach of structural health monitoring for railway bridges.

頁(從 - 到)1-7
期刊Zhongguo Tiedao Kexue/China Railway Science
出版狀態已出版 - 1月 2006


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