Vibration-Based Detection of Damage due to internal Overpressure in Prestressed Concrete Containment Vessel (PCCV)

سال انتشار: 1399
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 328

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شناسه ملی سند علمی:

ISAV10_061

تاریخ نمایه سازی: 18 اسفند 1399

چکیده مقاله:

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

نویسندگان

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