Inexpensive Health Monitoring of Cable-Stayed Brides Using Synchrosqueezed Wavelet Transform and Non-linear Main Components Analysis
محل انتشار: نهمین کنفرانس بین المللی آکوستیک و ارتعاشات
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 460
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شناسه ملی سند علمی:
ISAV09_034
تاریخ نمایه سازی: 11 دی 1398
چکیده مقاله:
Nowadays, the structural health monitoring has standardized in many countries. The health monitoring systems for large and important structures are equipped with a number of sensors. Therefore, their usage due to high prices is not yet prevalent in our country. The main pur-pose of this research is to providing an inexpensive method of structures health monitoring based on signal processing. Accordingly, only three sensors have been used to identifying the structure damage. In this article, a new damage detection method has been proposed. This method has driven from a combination of the signal processing techniques using the syn-chrosqueezed wavelet transform method, the data clustering, and the regression analysis us-ing autoassociative dependent neural networks method. For this purpose, the Yonghe bridge data references have been used, whose data are recorded based on the actual vibration of the bridge. The results indicate that the proposed signal processing method has sufficient accura-cy level to identifying the damage.
کلیدواژه ها:
نویسندگان
Ehsan Darvishan
Assistant Professor, Department of Civil Engineering, College of Engineering, Roudehen Branch, Islamic Azad University, Roudehen, Iran.
Gholamreza Ghodratiamiri
Professor, Department of Civil Engineering, Iran University of Science and Technology, Tehran, Iran
Mohammad H. Afsharmovahed
M.Sc. student, Department of Civil Engineering, Iran University of Science and Technology, Tehran, Iran
Mohammad Sadegh Torabi
M.Sc. student, Department of Civil Engineering, Iran University of Science and Technology, Tehran, Iran