Fatigue performance of overhead conductors tested under the same value of H/w parameter

Badibanga, Remy Kalombo; Miranda, Thiago; Rocha, P.H.C.; Ferreira, J.L.A.; Silva, Cosme Roberto Moreira; Araújo, J.A.

doi:10.1016/j.proeng.2018.02.035

Cited by 17 publications

(5 citation statements)

References 10 publications

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“…Table 1 reports the specifications for each conductor, and a total of 99 experimental tests were selected. To obtain additional details on these fatigue tests and on the conductors specifications interested readers should refer to Fadel, 13 Pestana, 14 and Kalombo 15 …”

Section: Available Datamentioning

confidence: 99%

Estimating fatigue behavior of a family of aluminum overhead conductors using ANNs

Cãmara

Badibanga

Ferreira

et al. 2021

Fatigue Fract Eng Mat Struct

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This study aimed to create an artificial neural network (ANN) architecture capable of estimating the fatigue behavior of aluminum overhead conductors, considering specific weight (W) and bending stiffness (EI) as parameters of influence. ANN training and testing is conducted by using a dataset obtained from fatigue tests carried out in a 50 m resonant bench at the University of Brasilia (UnB). ANNs are used to construct constant life diagrams for this family of conductors, and to compare the results obtained experimentally. Our findings show that for the architectures analyzed, it is possible to accurately estimate the fatigue behavior of this family of aluminum conductors.

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Section: Available Datamentioning

confidence: 99%

Estimating fatigue behavior of a family of aluminum overhead conductors using ANNs

Cãmara

Badibanga

Ferreira

et al. 2021

Fatigue Fract Eng Mat Struct

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“…This solution, intro to overhead lines in 1924, dominates most applications in overhead power system other method for minimising the effects of aeolian vibrations is to use self-dampin ductors such as ACSR-VR or oval spiral conductors such as ACSR-SE. However, d the high complexity of manufacturing and installation technology, these conducto not widely used [7,[20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Another method for minimising the effects of aeolian vibrations is to use self-damping conductors such as ACSR-VR or oval spiral conductors such as ACSR-SE. However, due to the high complexity of manufacturing and installation technology, these conductors are not widely used [ 7 , 20 , 21 , 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Studies on the Evolution of Fatigue Strength of Aluminium Wires for Overhead Line Conductors

Jurkiewicz,

Smyrak

2024

Materials

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Traditional ACSR overhead wires, which consist of a high-strength steel core and several layers of aluminium wires, are currently the most popular overhead line conductor (OHL) design globally. Operating conditions, particularly operating under varying stresses from Karman vortices, lead to the fatigue cracking of wires of the outer layer, followed by wires of the inner layers. Karman vortices are formed by the detachment of a laminar wind stream flowing around the conductor, which causes vibrations in the conductor called wind or aeolian oscillations. Aluminium wires are manufactured using standard batch material drawing technology. Although the fatigue strength of such wires is not standardised, there are various criteria for evaluating this characteristic, as well as established limits on the number of cycles needed to break the first wires of the outer layer. Fatigue strength also strongly depends on the geometric structure of the wire and its operating conditions. The article analyses the influence of the mechanical condition of aluminium wires used in ACSR cables on their fatigue strength. We then present results from aluminium wire fatigue tests conducted on a specially constructed test rig. In addition, fatigue cracks were interpreted using scanning microscopy.

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“…S1). ACSR is composed of steel in the core surrounded by high conductivity pure aluminum (such as AA1350) [ 4,5,6,7,8 ]. Due to the low strength of pure Al alloys, ACSR is reinforced by the steel core to sustain a large stress [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Review on recent progress in Al–Mg–Si 6xxx conductor alloys

Khangholi

Javidani

Maltais³

et al. 2022

Journal of Materials Research

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Fatigue performance of overhead conductors tested under the same value of H/w parameter

Cited by 17 publications

References 10 publications

Estimating fatigue behavior of a family of aluminum overhead conductors using ANNs

Estimating fatigue behavior of a family of aluminum overhead conductors using ANNs

Studies on the Evolution of Fatigue Strength of Aluminium Wires for Overhead Line Conductors

Review on recent progress in Al–Mg–Si 6xxx conductor alloys

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