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Dynamic analysis of a typical transmission line section under strong wind was carried out. Firstly, according to the design conditions of the typical transmission line section, a three dimensional finite element analysis model of cup tower-stay frame tower-conductor-ground wire-insulator system was established in ANSYS. The initial tension force of the conductors was applied by the cooling method...
Impact loads from ice shedding and broken conductors are common for transmission lines in accreted ice zone, which can bring threaten to the safe operation of the transmission lines. Dynamic analysis of the conductors in transmission lines under two typical impact loads were carried out. Firstly, a finite element model of seven span conductors in transmission line was established in general software...
The current paper investigates a destructive accident of Zhengxiang transmission line, in which there was six-tower collapse that might be demonstrably conducted by the downburst gust. Based on the dynamic stress analysis of tower members under the strong wind, tower collapse procedure is simulated by finite element method. Finite element method together with material nonlinearity, large deformation,...
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