Damage Localization and Quantification of Truss Structure Based on Electromechanical Impedance Technique and Neural Network
المؤلفون المشاركون
He, Cunfu
Yang, Shen
Wu, Bin
Liu, Zenghua
المصدر
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-06-29
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Truss structure is widely used in civil engineering.
However, it is difficult to quantitatively monitor the state of truss structures because of the connection diversity and complexity of truss structures.
In this paper, electromechanical impedance (EMI) technique was proposed to measure impedance spectra by using PZT elements and backpropagation (BP) neural network was used as an effective nonlinear conversion tool to quantify the health state of truss structures.
Firstly, frequency band of the spectrum was experimentally determined by the trial-and-error approach.
Then four connection rods of this truss structure were selected for experimental research.
These connection rods were loosened gradually with a small angle increment and the impedance spectra were recorded.
Then, the measured data were compressed through dividing the frequency range into multiple subbands.
And RMSD values of these bands showed that data points were reduced while damage features remained.
Finally, one four-layered BP neural network model was constructed based on these compressed data.
The research results showed that compressed impedance data could retain their damage features.
After the training, the developed neural network model could not only determine the location of loosened rod, but also quantify the loosening levels.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
He, Cunfu& Yang, Shen& Liu, Zenghua& Wu, Bin. 2014. Damage Localization and Quantification of Truss Structure Based on Electromechanical Impedance Technique and Neural Network. Shock and Vibration،Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1047988
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
He, Cunfu…[et al.]. Damage Localization and Quantification of Truss Structure Based on Electromechanical Impedance Technique and Neural Network. Shock and Vibration No. 2014 (2014), pp.1-9.
https://search.emarefa.net/detail/BIM-1047988
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
He, Cunfu& Yang, Shen& Liu, Zenghua& Wu, Bin. Damage Localization and Quantification of Truss Structure Based on Electromechanical Impedance Technique and Neural Network. Shock and Vibration. 2014. Vol. 2014, no. 2014, pp.1-9.
https://search.emarefa.net/detail/BIM-1047988
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1047988
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر