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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Bih, L. |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Kliem, Mathias
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Publications (5/5 displayed)
- 2018Damping properties of non-conductive composite materials for applications in power transmission pylonscitations
- 2018Mitigation of conductor line galloping by a direct cable-connection to non-conductive composite power pylonscitations
- 2017Characterization of clay-modified thermoset polymers under various environmental conditions for the use in high-voltage power pylonscitations
- 2016Characterization of Fibre-Direction Dependent Damping of Glass-Fibre Composites at Low Temperatures and Low Frequencies
- 2014Kombiniertes Sensorsystem zur ganzheitlichen Überwachung von Faserverbundstrukturen (KOMBISENS)
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article
Damping properties of non-conductive composite materials for applications in power transmission pylons
Abstract
This study aims to characterize the fibre direction dependent damping properties of non-conductive composite materialsto be used in newly designed electrical power transm°ission pylons, on which the conducting cables will be directlyconnected. Thus, the composite structure can be designed both to insulate and to act as a damper to avoid for exampleconductor line galloping. In order to predict the damping of the composite materials, a comprehensive analysis on arepresentative unidirectional laminate was carried out. The fibre direction dependent damping analysis of glass andaramid reinforced epoxy and vinylester, partly reinforced with nanoclay or fibre-hybridized, was investigated using aDynamic Mechanical Thermal Analysis and a Vibrating Beam Testing procedure for five different fibre orientations (0°, 30°, 45° , 60° and 90°). The focus was on damping behaviour evaluation at low temperatures (-20 C and 0 C) and lowvibration frequencies (0.5 Hz, 1 Hz and 2 Hz), in order to represent the environmental conditions of vibrating conductorlines during. The prediction of the damping behaviour for coupon-level-specimens with three balanced laminates wassuccessfully carried out with a maximal deviation of maximal 12.1 %.