A Mahalanobis Distance Cumulant-Based Structural Damage Identification Method with IMFs and Fitting Residual of SHM Measurements
المؤلفون المشاركون
Wang, Yin-hui
Wang, Tao
Chen, Chuang
Yang, Xiaoyan
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-17، 17ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-09-30
دولة النشر
مصر
عدد الصفحات
17
التخصصات الرئيسية
الملخص EN
Data-driven damage identification based on measurements of the structural health monitoring (SHM) system is a hot issue.
In this study, based on the intrinsic mode functions (IMFs) decomposed by the empirical mode decomposition (EMD) method and the trend term fitting residual of measured data, a structural damage identification method based on Mahalanobis distance cumulant (MDC) was proposed.
The damage feature vector is composed of the squared MDC values and is calculated by the segmentation data set.
It makes the changes of monitoring points caused by damage accumulate as “amplification effect,” so as to obtain more damage information.
The calculation method of the damage feature vector and the damage identification procedure were given.
A mass-spring system with four mass points and four springs was used to simulate the damage cases.
The results showed that the damage feature vector MDC can effectively identify the occurrence and location of the damage.
The dynamic measurements of a prestress concrete continuous box-girder bridge were used for decomposing into IMFs and the trend term by the EMD method and the recursive algorithm autoregressive-moving average with the exogenous inputs (RARMX) method, which were used for fitting the trend term and to obtain the fitting residual.
By using the first n-order IMFs and the fitting residual as the clusters for damage identification, the effectiveness of the method is also shown.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Chen, Chuang& Wang, Yin-hui& Wang, Tao& Yang, Xiaoyan. 2020. A Mahalanobis Distance Cumulant-Based Structural Damage Identification Method with IMFs and Fitting Residual of SHM Measurements. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1197460
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Chen, Chuang…[et al.]. A Mahalanobis Distance Cumulant-Based Structural Damage Identification Method with IMFs and Fitting Residual of SHM Measurements. Mathematical Problems in Engineering No. 2020 (2020), pp.1-17.
https://search.emarefa.net/detail/BIM-1197460
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Chen, Chuang& Wang, Yin-hui& Wang, Tao& Yang, Xiaoyan. A Mahalanobis Distance Cumulant-Based Structural Damage Identification Method with IMFs and Fitting Residual of SHM Measurements. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-17.
https://search.emarefa.net/detail/BIM-1197460
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1197460
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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