A Study on Instantaneous Time-Frequency Methods for Damage Detection of Nonlinear Moment-Resisting Frames

المؤلفون المشاركون

Ghodrati Amiri, Gholamreza
Darvishan, Ehsan
Ghaderi, Pedram

المصدر

Shock and Vibration

العدد

المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-14، 14ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2014-03-13

دولة النشر

مصر

عدد الصفحات

14

التخصصات الرئيسية

هندسة مدنية

الملخص EN

Most of the civil structures exhibit nonlinear hysteresis behavior during earthquakes.

However, detection of damage in these structures is a challenging issue due to successive change in structural characteristics during a seismic excitation.

The current paper presents a promising approach for damage detection of nonlinear moment frames.

First, several instantaneous time-frequency methods including Hilbert-Huang transform, direct quadrature, Teager energy operator, and higher-order energy operator are investigated as signal processing tools and the most appropriate method is selected using an outlier analysis.

Next, a procedure is proposed based on time-frequency analysis in conjunction with clustering to find damage extension in moment frames under a seismic excitation using frequency, amplitude, and energy damage measures.

A probabilistic approach is implemented to investigate capability of the procedure for different ground motion records using incremental dynamic analysis.

Results show that frequency is not an appropriate feature to detect damage in nonlinear structures.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Darvishan, Ehsan& Ghodrati Amiri, Gholamreza& Ghaderi, Pedram. 2014. A Study on Instantaneous Time-Frequency Methods for Damage Detection of Nonlinear Moment-Resisting Frames. Shock and Vibration،Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-1047941

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Darvishan, Ehsan…[et al.]. A Study on Instantaneous Time-Frequency Methods for Damage Detection of Nonlinear Moment-Resisting Frames. Shock and Vibration No. 2014 (2014), pp.1-14.
https://search.emarefa.net/detail/BIM-1047941

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Darvishan, Ehsan& Ghodrati Amiri, Gholamreza& Ghaderi, Pedram. A Study on Instantaneous Time-Frequency Methods for Damage Detection of Nonlinear Moment-Resisting Frames. Shock and Vibration. 2014. Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-1047941

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1047941