Investigation on the dynamic behavior of an OHL conductor bundle with light and heavy ice accretion
- Under a variety of possible cable vibrations which overhead line conductors can suffer, galloping identifies by large amplitudes at rather low frequencies. Changes of the cross-section as by ice-accretion provide the basis for such vibrations through an aerodynamic instability of drag and lift responses under wind excitation. Two different types of light and heavy ice bodies attached to a quad bundle conductor are analysed in wind tunnel tests. The results of aerodynamic drag and lift coefficients are investigated by means of a finite element model under turbulent wind excitation. It was found that instability can be well simulated for the heavy ice accretion but not for the case of lightly iced conductors.
Autor*innen: | Dominik Stengel, M. Clobes, K. Thiele |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Graue Literatur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | 8th International Colloquium on Bluff Body Aerodynamics and Applications |
Jahr der Erstveröffentlichung: | 2016 |
Erste Seite: | Paper 116, 1 |
Letzte Seite: | Paper 116, 8 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau |
Freie Schlagwörter: | bundle conductors; dynamic behaviour; ice accretion; overhead transmission line; wind turbulence |
Veranstaltung: | 8th International Colloquium on Bluff Body Aerodynamics and Applications |
Veranstaltungsort: | Boston, MA, USA |
Beginndatum der Veranstaltung: | 07.06.2016 |
Enddatum der Veranstaltung: | 11.06.2016 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 21.06.2016 |
Referierte Publikation: | Nein |