Maio 2014 vol. 1 num. 1 - 10th World Congress on Computational Mechanics
Full Article - Open Access.
INFLUENCE OF TRANSMISSION-LINE PARAMETERS ON HIGH-AMPLITUDE VIBRATION OF CONDUCTOR BUNDLES
The influence of transmission-line parameters on high-amplitude cable vibration was studied numerically on a bundle of two conductors. Such line parameters as span length, number of spacers in a span, and suspension length were varied, because they have great influence on the severity of vibration. The high-amplitude vibration was initiated by load removal simulating ice shedding from an entire span of a transmission line, and the severity of vibration was evaluated by determining conductor rebound height and angle of bundle rotation. The numerical model was developed using the commercial finite element analysis software ADINA. Results show that when the initial horizontal tension is kept constant, the conductor jump increases with span length for the shortest spans, and it varies in a limited interval for the longest spans. When the sag-to-span ratio is kept constant, the conductor jump increases with span length even for the longest spans considered. The bundle rotation may increase considerably with span length; however, if the number of spacers is great enough, then the span length may not affect the bundle rotation significantly. The bundle rotation is independent of the suspension length even when only one spacer is applied in the entire span, but the conductor jump increases considerably with suspension length.
Palavras-chave: Cable vibration, Conductor bundle, Numerical modeling, Transmission line,
-  ADINA, "Theory and Modeling Guide". Watertown, MA, 2004.
-  Hardy, C., Bourdon, P., "The influence of spacer dynamic properties in the control of bundle conductor motion". IEEE Trans. Power Apparatus and Systems PAS-99(2), 790- 799, 1980.
-  Havard, D.G., Van Dyke, P., "Effects of Ice on the Dynamics of Overhead Lines. Part II: Field Data on Conductor Galloping, Ice Shedding and Bundle Rolling". Proc. 11th International Workshop on Atmospheric Icing of Structures, Montreal, QC, Canada, 291- 296, 2005.
-  Irvine, H.M., "Cable Structures", MIT Press: Cambridge, MA, USA, 1981.
-  Jamaleddine, A., McClure, G., Rousselet, J., Beauchemin, R., "Simulation of Ice Shedding on Electrical Transmission Lines Using ADINA". Computers Andamp; Structures 47(4/5), 523-536, 1993.
-  Kollár, L.E., Farzaneh, M., "Vibration of Bundled Conductors Following Ice Shedding". IEEE Trans. Power Delivery 23(2), 1097-1104, 2008.
-  Kollár, L.E., Farzaneh, M., "Modeling Sudden Ice Shedding from Conductor Bundles". IEEE Trans. Power Delivery, submitted, 2011.
-  Morgan, V.T., Swift, D.A., "Jump height of overhead-line conductors after the sudden release of ice loads". Proc. IEE 111(10), 1736-1746, 1964.
-  Roberge, M., "A Study of Wet Snow Shedding from an Overhead Cable". MEng thesis, McGill University, Montreal, QC, 2006.
-  Roshan Fekr, M., McClure, G., "Numerical modelling of the dynamic response of ice shedding on electrical transmission lines". Atmospheric Research 46, 1-11, 1998.
-  Van Dyke, P., Laneville, A., "Simulated Ice Shedding on a Full-Scale Test Line". Proc. 8th Int. Symp. on Cable Dynamics, Paris, France, 2009.
-  Yang, F., Yang, J., Han, J., Fu, D., "Dynamic Responses of Transmission Tower-Line System under Ice Shedding". Int. J. Structural Stability and Dynamics 10(3), 461-481, 2010.
Kollár, L. E.; Farzaneh, M.; "INFLUENCE OF TRANSMISSION-LINE PARAMETERS ON HIGH-AMPLITUDE VIBRATION OF CONDUCTOR BUNDLES", p. 4193-4200 . In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1].
São Paulo: Blucher,
ISSN 2358-0828, DOI 10.5151/meceng-wccm2012-19757
últimos 30 dias | último ano | desde a publicação