scholarly journals Dynamic response due to cable rupture in a transmission lines guyed towers

2017 ◽  
Vol 199 ◽  
pp. 116-121 ◽  
Author(s):  
Thiago B. Carlos ◽  
João Kaminski Jr.
Keyword(s):  
Dynamic Response ◽  
Transmission Lines ◽  
Guyed Towers

Dynamic response of transmission lines guyed towers under wind loading

2010 ◽  
Vol 37 (3) ◽  
pp. 450-465 ◽  
Author(s):  
F. Gani ◽  
F. Légeron
Keyword(s):  
Dynamic Response ◽  
Direct Current ◽  
Transmission Lines ◽  
Wind Loading ◽  
Dynamic Effects ◽  
Transient Dynamic ◽  
Simplified Method ◽  
Loading Case ◽  
Dc Line ◽  
Guyed Towers

The importance of the dynamic response of guyed towers for transmission lines (TLs) under wind loading is evaluated in this article. The objective is to verify if the simplified static-equivalent approach provided in the current TL codes is sufficient for this type of flexible tower. As a comparison, transient dynamic (TD) analyses were performed. Two different guyed tower configurations were investigated: (i) the direct current (DC) line and (ii) the alternating current (AC) line. Loading cases considering bare and iced TL structures were studied. It was found that, depending on the guyed tower configuration and the loading case, the static-equivalent approach may underestimate the possible dynamic response. In addition, a simplified method that allows a better prediction of the dynamic effects is proposed.

RPC Pole Composite Cross Arm Design and Wind-Induced Dynamic Analysis

2014 ◽  
Vol 919-921 ◽  
pp. 280-283
Author(s):  
Yan Zhong Ju ◽  
Nian Tong ◽  
Qi Wu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Composite Materials ◽  
Dynamic Response ◽  
Transmission Lines ◽  
High Strength ◽  
Practical Significance ◽  
Analysis Software ◽  
Element Analysis ◽  
Fluctuating Wind

The author puts forward a new insulation cross arm, uses the insulation and high strength composite materials (FRP), to replace the steel applied to the RPC pole cross arm, this not only has a full bar maintenance-free features, and can shorten transmission corridor again, for the construction of resource intensive transmission lines has important practical significance. In addition, this paper uses finite element analysis software ANSYS, considering the influence of fluctuating wind, in the modal analysis and dynamic response illustrates the actuality of cross arm application of composite materials.

Modelling the Dynamic Response of Iced Transmission Lines Subjected to Cable Rupture and Ice Shedding

2013 ◽  
Vol 28 (2) ◽  
pp. 948-954 ◽  
Author(s):  
Farshad Mirshafiei ◽  
Ghyslaine McClure ◽  
Masoud Farzaneh
Keyword(s):  
Dynamic Response ◽  
Transmission Lines ◽  
Ice Shedding
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