Vibration-Based Detection of Damage due to internal Overpressure in Prestressed Concrete Containment Vessel (PCCV)
Publish place: 10th International Conference on Acoustics and Vibration
Publish Year: 1399
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ISAV10_061
تاریخ نمایه سازی: 18 اسفند 1399
Abstract:
Structural damage detection using incomplete measured response data has emerged as a new research area in civil, mechanical, biomechanical, and aerospace engineering communities in recent years. The purpose of this paper is to present a sensitivity-based finite element model (FEM) updating method in the frequency domain. The transfer function (TF) of a damaged structure is approximated using the measured natural frequencies of the damaged structure and the analytical mode shapes of the intact structure. A general damage case with arbitrary changes in stiffness of all elements has been applied to a prestressed concrete containment vessel (PCCV). Furthermore, the finite element model (FEM) of the NUPEC/NRC 1/4-scale model of a PCCV containment of the Ohi-3 power plant is calibrated using measured dis-placement data. The calibrated model was utilized for the numerical investigation of the pro-posed method. In the numerical cases, a 15% random error is applied to data of damaged structure
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Authors
Mostafa Iraniparast
M.Sc. Student, Department of Civil Engineering, Amirkabir University of Technology, Tehran, Iran
Ahmad Shokoohfar
Assistant Professor, Department of Civil Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
Alireza Rahai
Professor, Department of Civil Engineering, Amirkabir University of Technology, Tehran, Iran
Mohammad Rahai
Formerly M.Sc. Student, Department of civil engineering, Sharif University of Technology, Tehran, Iran