Galloping of insulated bundled overhead line simplified analysis

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F24%3A00585979" target="_blank" >RIV/68378297:_____/24:00585979 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.21495/em2024-126" target="_blank" >http://dx.doi.org/10.21495/em2024-126</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21495/em2024-126" target="_blank" >10.21495/em2024-126</a>

Result language
angličtina
Original language name
Galloping of insulated bundled overhead line simplified analysis
Original language description
Our paper provides an analysis of the susceptibility of a particular bundled overhead line to galloping. It presents a case study of an aerial bundled cable, consisting of four conductors insulated by polyethylene, and used for low-voltage power lines. The susceptibility to loss of stability is analyzed for cable without and with simulated icing observed on similar real conductors. In the first case, the proneness to galloping was excluded based on the results of CFD simulation and the Den Hartog criterion. In latter case, the possible occurrence of galloping was confirmed. The critical wind velocity for the ice-covered cable was calculated utilizing quasi-steady theory. Finally, the amplitudes of limit cycle oscillation for supercritical wind speeds were estimated based on simplified numerical analysis.
Czech name
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Czech description
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Project
<a href="/en/project/GA24-13061S" target="_blank" >GA24-13061S: The Combined Effects of Aeroelastic Instabilities on Civil Engineering Structures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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