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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| Format: | Article |
| Language: | English |
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Wiley
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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| _version_ | 1832564717987561472 |
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| author | Shen-En Chen Kaoshan Dai |
| author_facet | Shen-En Chen Kaoshan Dai |
| author_sort | Shen-En Chen |
| collection | DOAJ |
| 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. |
| format | Article |
| id | doaj-art-ec29594bef2841a7bf88f01d12d9d0fc |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-ec29594bef2841a7bf88f01d12d9d0fc2025-02-03T01:10:28ZengWileyShock 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 |
| spellingShingle | Shen-En Chen Kaoshan Dai Modal Characteristics of Two Operating Power Transmission Poles Shock and Vibration |
| title | 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_short | Modal Characteristics of Two Operating Power Transmission Poles |
| title_sort | modal characteristics of two operating power transmission poles |
| url | http://dx.doi.org/10.3233/SAV-2010-0547 |
| work_keys_str_mv | AT shenenchen modalcharacteristicsoftwooperatingpowertransmissionpoles AT kaoshandai modalcharacteristicsoftwooperatingpowertransmissionpoles |