Dynamic response of self-supported power transmission tower subjected to wind action
A power transmission tower carries electrical transmission conductor at adequate distance from the ground. It must withstand all nature's forces besides its self-weight. In structural analysis, natural frequency, mode shape and damping ratio are used to define the structural dynamic properties...
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my.uniten.dspace-240292023-05-29T14:54:32Z Dynamic response of self-supported power transmission tower subjected to wind action Hamzah N.H. Usman F. Yatim M.Y.M. 57205238923 55812540000 57205235508 A power transmission tower carries electrical transmission conductor at adequate distance from the ground. It must withstand all nature's forces besides its self-weight. In structural analysis, natural frequency, mode shape and damping ratio are used to define the structural dynamic properties which relate to the basic structural features. This paper described the dynamic analysis including the modal and the time history analysis on each segment of the self-supported transmission tower to understand its dynamic responses subjected to wind action. The factors such as different height above ground, a different value of wind speed and different wind angle of attack were included in this study to see the influence of those factors towards dynamic response of the structure. The contribution of the wind towards the displacement of the structure is determined in this study by comparing the result obtained in a linear static analysis which considered the load combination without and with the presence of wind action. It was found that displacement using dynamic analysis is bigger than static linear analysis. The result illustrates that the studied factors gave a significant effect on the dynamic response of the structure and the findings indicate that dynamic analysis is vital in structural design. � 2018 Authors. Final 2023-05-29T06:54:32Z 2023-05-29T06:54:32Z 2018 Article 10.14419/ijet.v7i4.35.22866 2-s2.0-85059239665 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85059239665&doi=10.14419%2fijet.v7i4.35.22866&partnerID=40&md5=f491f046bcb3f9f1db4bd0bb8fa30a02 https://irepository.uniten.edu.my/handle/123456789/24029 7 4 476 481 Science Publishing Corporation Inc Scopus |
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A power transmission tower carries electrical transmission conductor at adequate distance from the ground. It must withstand all nature's forces besides its self-weight. In structural analysis, natural frequency, mode shape and damping ratio are used to define the structural dynamic properties which relate to the basic structural features. This paper described the dynamic analysis including the modal and the time history analysis on each segment of the self-supported transmission tower to understand its dynamic responses subjected to wind action. The factors such as different height above ground, a different value of wind speed and different wind angle of attack were included in this study to see the influence of those factors towards dynamic response of the structure. The contribution of the wind towards the displacement of the structure is determined in this study by comparing the result obtained in a linear static analysis which considered the load combination without and with the presence of wind action. It was found that displacement using dynamic analysis is bigger than static linear analysis. The result illustrates that the studied factors gave a significant effect on the dynamic response of the structure and the findings indicate that dynamic analysis is vital in structural design. � 2018 Authors. |
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57205238923 |
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57205238923 Hamzah N.H. Usman F. Yatim M.Y.M. |
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Hamzah N.H. Usman F. Yatim M.Y.M. |
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Hamzah N.H. Usman F. Yatim M.Y.M. Dynamic response of self-supported power transmission tower subjected to wind action |
author_sort |
Hamzah N.H. |
title |
Dynamic response of self-supported power transmission tower subjected to wind action |
title_short |
Dynamic response of self-supported power transmission tower subjected to wind action |
title_full |
Dynamic response of self-supported power transmission tower subjected to wind action |
title_fullStr |
Dynamic response of self-supported power transmission tower subjected to wind action |
title_full_unstemmed |
Dynamic response of self-supported power transmission tower subjected to wind action |
title_sort |
dynamic response of self-supported power transmission tower subjected to wind action |
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Science Publishing Corporation Inc |
publishDate |
2023 |
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1806427836341288960 |
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13.211869 |