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Journal of Aerospace Engineering, 2021
AbstractIn current galloping studies, the shape and surface of ice accretion are usually simplified to the regular and smooth properties, although they have the probability of irregularity and roug...
Wenjuan Lou +4 more
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AbstractIn current galloping studies, the shape and surface of ice accretion are usually simplified to the regular and smooth properties, although they have the probability of irregularity and roug...
Wenjuan Lou +4 more
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Rime icing on bundled conductors
Cold Regions Science and Technology, 2019With the increase of electric demand and development of high voltage technology, bundled conductors are used more frequently in new power line networks. Ice load on conductors is a major structural design criterion of power lines, and icing on bundled conductors is different from that on a single conductor because of the shadowing effect by the ...
Qing, He +6 more
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IC mask layout with a single conductor layer
Proceedings of the June 1970 design automation workshop on Design automation - DAC '70, 1970A computer program for the automatic layout of single conductor layer IC masks is described. Descriptions are included of element modelling, element placement, grid expansion, cross-over minimization, conductor routing and layout compaction.
Sheldon B. Akers Jr. +2 more
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Inertially Coupled Galloping of Iced Conductors
Journal of Applied Mechanics, 1992This paper is concerned with the galloping of iced conductors modeled as a two-degrees-of-freedom system. It is assumed that a realistic cross-section of a conductor has eccentricity; that is, its center of mass and elastic axis do not coincide. Bifurcation theory leads to explicit asymptotic solutions not only for the periodic solutions but also for ...
P. Yu, A. H. Shah, N. Popplewell
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Effect of temperature on galloping of iced conductors
Advances in Structural Engineering, 2017This article investigates the effect of temperature on galloping of iced conductors, accounting for the influence of sagging and geometric nonlinearity. By extending Irvine’s cable theory to thermo-elasticity problems, an analytical model is proposed to evaluate the effect of thermal stress on galloping of transmission lines.
Guo Li, Li Li
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On the mechanisms of the ice accretion on H.V. conductors
Cold Regions Science and Technology, 1990Abstract The shapes and density of ice accretions on an H.V. conductor is closely related to the electrical corona activities on ice asperities. We will present some effects of positive and negative corona discharges on a tip of conical ice as a function of corona current, temperature and atmospheric conditions. Firstly, the loss in the volume of the
Y. Teisseyre, M. Farzaneh
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Galloping of Lightly Iced Conductors: An Explanation
Dynamics, Acoustics and Simulations, 1998Abstract Stability of a stranded, sagged, lightly iced electrical power transmission cable subjected to aerodynamic forces and moment is studied. Small oscillations in three Cartesian directions about wind loaded equilibrium position and torsional oscillations are considered.
S. H. Venkatasubramanian +3 more
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DC ice-melting model for elliptic glaze iced conductor
2010 International Conference on High Voltage Engineering and Application, 2010Both operating experiences and experiments show that the cross-section shape of iced conductor has an obvious influence on ice-melting time, however, it is ignored by almost all the existing ice-melting models which suppose that the iced conductor has a perfect circular cross-section shape.
Xingliang Jiang, Songhai Fan
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DC Ice-Melting Model for Elliptic Glaze Iced Conductor
IEEE Transactions on Power Delivery, 2011Both practices and experiments show that the cross-section shape of iced conductor has an obvious influence on ice-melting time, but it is ignored by almost all existing ice-melting models which assume that the iced conductor has a perfect circular cross-section shape.
Songhai Fan +5 more
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Effects of Ice Thickness on the Aerodynamic Characteristics of Crescent Shape Iced Conductors
Applied Mechanics and Materials, 2012Aerodynamic characteristics of iced conductors were investigated by the wind tunnel test. Under the homogeneous turbulence of 5% intensity, aerodynamic force coefficients of single and bundled conductors were obtained at wind angles of 0°~180°. The variation patterns of aerodynamic forces on the iced conductors with respect to wind angels of attack ...
Dong Yan +3 more
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