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1.
An aproximate technique for damage identification in beams using nonlinear regression analysis of bending frequency changes
Elma Ekinovic, Vlatko Doleček, Slavko Dolinšek, Nedim Hodzic, 2009, original scientific article

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.
Found in: ključnih besedah
Keywords: damage identification, finite element analysis, nonlinear regression
Published: 15.10.2013; Views: 1498; Downloads: 31
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2.
Experimental verification of an approximate technoque for damage identification in beams using nonlinear regression analysis of bending frequency changes
Elma Ekinovic, Vlatko Doleček, Slavko Dolinšek, Nedim Hodzic, 2010, original scientific article

Abstract: This paper presents the experimental verification of an approximate technique for damage identification in beam-like structures, which is based on the use of bending frequency changes and nonlinear regression analysis. The proposed technique was explained in details in [7] so only few necessary steps are recalled here. The identification of damage location and its depth is performed by use of experimentally measured frequency changes and previously established regression relations between bending frequency changes and damage parameters. The experiments were performed on the intact and damaged beams. The damage in these experiments is made by saw cut as a narrow open notch perpendicular to the beam axis. The results of identification are promising taking into account inevitable modelling and measurement errors.
Found in: ključnih besedah
Keywords: damage identification, frequency changes, finite element analysis, nonlinear regression
Published: 15.10.2013; Views: 1346; Downloads: 23
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3.
Drivers of electricity prices in industry and households in Slovenia, Croatia, Austria and Italy
Štefan Bojnec, Drago Papler, 2016, published scientific conference contribution abstract

Found in: ključnih besedah
Summary of found: ...electricity, energy prices, taxes, statistical analysis, regression analysis, Slovenia, Croatia, Austria, Italy, ...
Keywords: electricity, energy prices, taxes, statistical analysis, regression analysis, Slovenia, Croatia, Austria, Italy
Published: 08.08.2016; Views: 894; Downloads: 38
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