Results 191 to 200 of about 208,722 (254)
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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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Nonlinear Numerical Simulation of Iced Conductor Galloping
Applied Mechanics and Materials, 2010A two-node cable element which the axial torsion and geometrical nonlinear were considered was developed based on the update Lagrange formulation, and a model of multi-span transmission line for galloping analysis was established. A nonlinear numerical simulation of single iced conductor galloping was proposed.
Li Li +3 more
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Analysis of Conductor Galloping Field Observations???Single Conductors
IEEE Power Engineering Review, 1981Phase-to-phase clearances often are increased in the design of overhead lines to minimize flashovers caused by galloping of ice-coated conductors in regions where that occurs. A collection of reports of the observed galloping behavior of operating lines has been analyzed with the objective of formulating improved guides for selection of increased ...
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2025 7th Asia Energy and Electrical Engineering Symposium (AEEES)
Real-time monitoring of galloping in high-voltage overhead transmission lines is of great significance for ensuring reliable power supply. However, traditional distributed online monitoring methods face challenges such as difficulties in equipment ...
Yalong Mai +5 more
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Real-time monitoring of galloping in high-voltage overhead transmission lines is of great significance for ensuring reliable power supply. However, traditional distributed online monitoring methods face challenges such as difficulties in equipment ...
Yalong Mai +5 more
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Research on Frequency-Adaptive GNSS/IMU Coupled Conductor Galloping Monitoring Technology
2024 5th International Conference on Clean Energy and Electric Power Engineering (ICCEPE)With the rapid development of power transmission line construction in China, the stable operation of overhead power transmission lines has become crucial for national energy security.
Ning Wang +8 more
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2024 3rd International Conference on Artificial Intelligence and Computer Information Technology (AICIT)
The overhead transmission line is affected by the weather. After the wire is eccentrically covered, it is easy to produce galloping under the action of wind, which threatens the safe operation of the transmission line.
Bin Tian, Yang Pi, Hanyu Hong
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The overhead transmission line is affected by the weather. After the wire is eccentrically covered, it is easy to produce galloping under the action of wind, which threatens the safe operation of the transmission line.
Bin Tian, Yang Pi, Hanyu Hong
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Conductor Galloping Part I - Den Hartog Mechanism
IEEE Transactions on Power Apparatus and Systems, 1981The results of detailed aerodynamic tests in the wind tunnel, over a practical range of natural ice shapes and wind speeds, suggest that the Den Hartog mechanism is not the cause for conductor galloping on overhead lines. These results also demonstrate the inadequacy of static aerodynamic data and the importance of damping in predicting dynamic ...
O. Nigol, P. Buchan
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Galloping Stability Criterion for 3-DOF Coupled Motion of an Ice-Accreted Conductor
, 2020This study presents an analytical galloping stability criterion for a three-degree-of-freedom (3-DOF) coupled motion of an ice-accreted conductor by using the eigenvalue perturbation method...
W. Lou, D. Wu, Haiwei Xu, Jiang Yu
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IEEE International Conference Power and Energy Systems, 2020
In this paper, based on the numerical simulation method, the analysis model of ice-covered quad bundle conductor is established in ABAQUS. Based on the analysis of the displacement time history results of typical joints of the conductor, the influence of
Zhuli Liu +3 more
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In this paper, based on the numerical simulation method, the analysis model of ice-covered quad bundle conductor is established in ABAQUS. Based on the analysis of the displacement time history results of typical joints of the conductor, the influence of
Zhuli Liu +3 more
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Galloping of bundled power line conductors
Journal of Sound and Vibration, 1980Abstract This paper describes an experimental and analytical study of the galloping of a two-dimensional section model of a two-conductor bundle in which ice-accreted conductors are replaced by two identical square prisms, with both vertical and torsional movements allowed but the horizontal one blocked, in a uniform wind tunnel flow.
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