TY - JOUR
T1 - HHT based railway bridge structural health monitoring
AU - Huang, Norden
AU - Huang, Kang
PY - 2006/1
Y1 - 2006/1
N2 - 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.
AB - 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.
KW - HHT
KW - Railway bridge
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=33645648864&partnerID=8YFLogxK
M3 - 期刊論文
AN - SCOPUS:33645648864
SN - 1001-4632
VL - 27
SP - 1
EP - 7
JO - Zhongguo Tiedao Kexue/China Railway Science
JF - Zhongguo Tiedao Kexue/China Railway Science
IS - 1
ER -