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The Effect of Formation a Galloping Motion on the Electric Transmission Cables in the High Voltage Tower | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 15, Issue 2, 2011, Pages 74-88 | ||
| Author | ||
| Ali Fahad Fahem | ||
| Abstract | ||
| This research includes a theoretical analysis according to nonlinear Klein- Gordon equation to study the dynamic state of a specimen of an electric translation line in Iraq while it is in a galloping motion that results from: different wind velocity, material type, different tension force as well as the span between towers. This is in addition to knowing the behavior of the specimen under the effect of both the force that results from wind velocity and the altitudes formulated in the string due to the galloping motion. Reducing the effect of the galloping motion and compare it with the numerical method of a model with multi-degree of freedom by using the ANSYS workbench-12.1 is also taken care of in this work. The theoretical findings of the research have shown that they are very near to those of the numerical method; they have also shown that the material type and the length of the string are very important in determining the altitude of the galloping motion. Moreover, increasing the resistance of the electric network against wind velocity and /or near explosions need to reduce the span between the towers to half is also one of the vital findings of the research. | ||
| Keywords | ||
| galloping motion; string; ANSYS Workbench; FEA; wave equation; translation line; wind forces | ||
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