ǂAn ǂaproximate technique for damage identification in beams using nonlinear regression analysis of bending frequency changes

Elma Ekinovic (Author), Vlatko Doleček (Author), Slavko Dolinšek (Author), Nedim Hodzic (Author)

Abstract

This paper addresses the problem of damage identification in beam-like structures on the base of bending frequency changes. The identification of damage location and its depth is performed by use of regression relations between changes in natural frequencies and damage parameters. Input data for establishing the regression relations are collected using numerical analysis (FEA) of the beam structure with and without damage. The damage is simulated as a narrow open notch perpendicular to the beam axis. The efficiency and limitations of the proposed technique are assessed through a series of damage scenarios.

Keywords

damage identification;finite element analysis;nonlinear regression;

Data

Language:	English
Year of publishing:	2009
Typology:	1.01 - Original Scientific Article
Organization:	UP FM - Faculty of Management Koper
UDC:	519.23
COBISS:	3665879
ISSN:	1584-2665
Views:	3098
Downloads:	83
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Unknown
Secondary keywords:	prepoznavanje škode;metode;
Type (COBISS):	Not categorized
Pages:	str. 192-200
Volume:	ǂTome ǂ7
Issue:	ǂFasc. ǂ3
Chronology:	2009
Keywords (UDC):	mathematics;natural sciences;naravoslovne vede;matematika;mathematics;matematika;probability;mathematical statistics;verjetnost;matematična statistika;
ID:	1492009