Modal Characteristics of Two Operating Power Transmission Poles
Unique conductor-pole couplings complicate the dynamic behaviors of electric transmission pole line systems. Finite element modeling is performed on two typical transmission poles used in southeastern USA – a steel pole and a prestressed concrete pole. The two poles are representative of unique stru...
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Hindawi Limited
2010-01-01
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Series: | Shock and Vibration |
Online Access: | http://dx.doi.org/10.3233/SAV-2010-0547 |
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doaj-ec29594bef2841a7bf88f01d12d9d0fc2020-11-24T21:23:04ZengHindawi LimitedShock and Vibration1070-96221875-92032010-01-01174-555156110.3233/SAV-2010-0547Modal Characteristics of Two Operating Power Transmission PolesShen-En Chen0Kaoshan Dai1Department of Civil and Environmental Engineering, University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223 - 0001, USADepartment of Civil and Environmental Engineering, University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223 - 0001, USAUnique conductor-pole couplings complicate the dynamic behaviors of electric transmission pole line systems. Finite element modeling is performed on two typical transmission poles used in southeastern USA – a steel pole and a prestressed concrete pole. The two poles are representative of unique structure types: a heavy rod-like structure and a lightweight, shell-type structure. Since coupling issues between the pole and the cable introduce great complexities for modeling the pole line system, simplified numerical models are used. Limited full-scale modal test results are presented to verify the numerical models. The prestressed concrete pole is shown to be easier for mode identification than the steel pole – but both numerical models show complicated coupled vibration modes. This study is part of a larger study to establish an understanding of the dynamic response analyses of power grid under ground vibrations.http://dx.doi.org/10.3233/SAV-2010-0547 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shen-En Chen Kaoshan Dai |
spellingShingle |
Shen-En Chen Kaoshan Dai Modal Characteristics of Two Operating Power Transmission Poles Shock and Vibration |
author_facet |
Shen-En Chen Kaoshan Dai |
author_sort |
Shen-En Chen |
title |
Modal Characteristics of Two Operating Power Transmission Poles |
title_short |
Modal Characteristics of Two Operating Power Transmission Poles |
title_full |
Modal Characteristics of Two Operating Power Transmission Poles |
title_fullStr |
Modal Characteristics of Two Operating Power Transmission Poles |
title_full_unstemmed |
Modal Characteristics of Two Operating Power Transmission Poles |
title_sort |
modal characteristics of two operating power transmission poles |
publisher |
Hindawi Limited |
series |
Shock and Vibration |
issn |
1070-9622 1875-9203 |
publishDate |
2010-01-01 |
description |
Unique conductor-pole couplings complicate the dynamic behaviors of electric transmission pole line systems. Finite element modeling is performed on two typical transmission poles used in southeastern USA – a steel pole and a prestressed concrete pole. The two poles are representative of unique structure types: a heavy rod-like structure and a lightweight, shell-type structure. Since coupling issues between the pole and the cable introduce great complexities for modeling the pole line system, simplified numerical models are used. Limited full-scale modal test results are presented to verify the numerical models. The prestressed concrete pole is shown to be easier for mode identification than the steel pole – but both numerical models show complicated coupled vibration modes. This study is part of a larger study to establish an understanding of the dynamic response analyses of power grid under ground vibrations. |
url |
http://dx.doi.org/10.3233/SAV-2010-0547 |
work_keys_str_mv |
AT shenenchen modalcharacteristicsoftwooperatingpowertransmissionpoles AT kaoshandai modalcharacteristicsoftwooperatingpowertransmissionpoles |
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1725993589942517760 |