TY - JOUR
T1 - Fast damage detection using max-peak and max-peak-time for PC box girder in vibration experiment
AU - Ye, Xiong Fei
AU - Kim, Chul Woo
AU - Ogai, Harutoshi
N1 - Funding Information:
This study was partly supported by a Japanese Society for Promotion of Science ( JSPS ) Grant-in-Aid for Scientific Research (B) under Project No. 16H04398 . That financial support is gratefully acknowledged. The authors would like to thank Dr. Yoshinobu Oshima from Public Works Research Institute (PWRI), Mr. O.S. Luna Vera and Dr. Kai-Chun Chang from Kyoto University for their great support in research and experiment, and also the first author expresses his appreciation to the support from China Scholarship Council (No. 201508050019 ) in both life and research.
Funding Information:
This study was partly supported by a Japanese Society for Promotion of Science (JSPS) Grant-in-Aid for Scientific Research (B) under Project No. 16H04398. That financial support is gratefully acknowledged. The authors would like to thank Dr. Yoshinobu Oshima from Public Works Research Institute (PWRI), Mr. O.S. Luna Vera and Dr. Kai-Chun Chang from Kyoto University for their great support in research and experiment, and also the first author expresses his appreciation to the support from China Scholarship Council (No. 201508050019) in both life and research.
PY - 2020/2
Y1 - 2020/2
N2 - Dynamic features are often used for structural damage diagnosis. Besides the features from the modal analysis, some other features describing the wave propagation in the structure are usually concerned, like the wave's intensity, speed, etc. In the data processing of experiment on the pre-stressed concrete (PC) box girders with artificial damages, the max-peak and max-peak-time, two of the basic features of time series will be investigated and analyzed in reconstruction combination matrices to investigate the global information of the update of structural status respectively, which are corresponding to the speed and intensity of the wave propagation separately. In all stages of vibration experiment, curve of distance/2-D correlation coefficient of the max-peak-time and max-peak matrices can have very clear tendencies to demonstrate the global damage happened in the PC box girder, which are better than some modal features in modal analysis using the same original data.
AB - Dynamic features are often used for structural damage diagnosis. Besides the features from the modal analysis, some other features describing the wave propagation in the structure are usually concerned, like the wave's intensity, speed, etc. In the data processing of experiment on the pre-stressed concrete (PC) box girders with artificial damages, the max-peak and max-peak-time, two of the basic features of time series will be investigated and analyzed in reconstruction combination matrices to investigate the global information of the update of structural status respectively, which are corresponding to the speed and intensity of the wave propagation separately. In all stages of vibration experiment, curve of distance/2-D correlation coefficient of the max-peak-time and max-peak matrices can have very clear tendencies to demonstrate the global damage happened in the PC box girder, which are better than some modal features in modal analysis using the same original data.
KW - Acceleration
KW - Damage detection
KW - Max-peak
KW - Max-peak-time
KW - PC box girder
KW - Vibration experiment
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U2 - 10.1016/j.measurement.2019.107178
DO - 10.1016/j.measurement.2019.107178
M3 - Article
AN - SCOPUS:85075334669
SN - 1536-6367
VL - 151
JO - Industrial Metrology
JF - Industrial Metrology
M1 - 107178
ER -