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Damage Detection Based on Cross-Term Extraction from Bilinear Time-Frequency Distributions
المؤلفون المشاركون
Kai, Wang
Yan, Weiming
He, Haoxiang
Yuchao, Ma
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-06-26
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
Abundant damage information is implicated in the bilinear time-frequency distribution of structural dynamic signals, which could provide effective support for structural damage identification.
Signal time-frequency analysis methods are reviewed, and the characters of linear time-frequency distribution and bilinear time-frequency distribution typically represented by the Wigner-Ville distribution are compared.
The existence of the cross-term and its application in structural damage detection are demonstrated.
A method of extracting the dominant term is proposed, which combines the short-time Fourier spectrum and Wigner-Ville distribution; then two-dimensional time-frequency transformation matrix is constructed and the complete cross-term is extracted finally.
The distribution character of which could be applied to the structural damage identification.
Through theoretical analysis, model experiment and numerical simulation of the girder structure, the change rate of cross-term amplitude is validated to identify the damage location and degree.
The effectiveness of the cross-term of bilinear time-frequency distribution for damage detection is confirmed and the analytical method of damage identification used in structural engineering is available.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Yuchao, Ma& Yan, Weiming& He, Haoxiang& Kai, Wang. 2014. Damage Detection Based on Cross-Term Extraction from Bilinear Time-Frequency Distributions. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-513770
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Yuchao, Ma…[et al.]. Damage Detection Based on Cross-Term Extraction from Bilinear Time-Frequency Distributions. Mathematical Problems in Engineering No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-513770
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Yuchao, Ma& Yan, Weiming& He, Haoxiang& Kai, Wang. Damage Detection Based on Cross-Term Extraction from Bilinear Time-Frequency Distributions. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-513770
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-513770
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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