Finite element modelling of transmission line galloping
Identifieur interne : 003F71 ( Main/Exploration ); précédent : 003F70; suivant : 003F72Finite element modelling of transmission line galloping
Auteurs : Y. M. Desai [Canada] ; P. Yu [Canada] ; N. Popplewell [Canada] ; A. H. Shah [Canada]Source :
- Computers and Structures [ 0045-7949 ] ; 1995.
Abstract
A computationally efficient, finite element idealization is presented to analyse galloping, which is characterized by large amplitude vibrations of iced, multi-span, electrical transmission lines. A three-node, isoparametric cable element having three translational and a torsional degree-of-freedom at each node is developed to model a conductor. Support insulator strings and remote conductor spans are represented by linear static springs. A transmission line's interactions with a support tower are modelled through the tower's equivalent stiffness at the conductor's suspension point. An expedient time marching scheme is developed to obtain the envelope of galloping. The scheme can be utilized to integrate dynamic equilibrium equations involving not only geometric and material nonlinearities but also nonlinear damping. Time integration is performed in the sub-space to minimize computational effort. The finite element model has been employed to successfully simulate field galloping records. It is shown that it is necessary to consider a multi rather than a single span for a conservative estimate of the galloping amplitudes to enable sufficient clearances to be designed between adjacent conductors.
Url:
DOI: 10.1016/0045-7949(94)00630-L
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 001375
- to stream Istex, to step Curation: 001375
- to stream Istex, to step Checkpoint: 001945
- to stream Main, to step Merge: 004693
- to stream Main, to step Curation: 003F71
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Finite element modelling of transmission line galloping</title><author><name sortKey="Desai, Y M" sort="Desai, Y M" uniqKey="Desai Y" first="Y. M." last="Desai">Y. M. Desai</name></author><author><name sortKey="Yu, P" sort="Yu, P" uniqKey="Yu P" first="P." last="Yu">P. Yu</name></author><author><name sortKey="Popplewell, N" sort="Popplewell, N" uniqKey="Popplewell N" first="N." last="Popplewell">N. Popplewell</name></author><author><name sortKey="Shah, A H" sort="Shah, A H" uniqKey="Shah A" first="A. H." last="Shah">A. H. Shah</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:10B32CDAF4ADF68AB1DA94140FF49CDCDAC12221</idno><date when="1995" year="1995">1995</date><idno type="doi">10.1016/0045-7949(94)00630-L</idno><idno type="url">https://api-v5.istex.fr/document/10B32CDAF4ADF68AB1DA94140FF49CDCDAC12221/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">001375</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">001375</idno><idno type="wicri:Area/Istex/Curation">001375</idno><idno type="wicri:Area/Istex/Checkpoint">001945</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">001945</idno><idno type="wicri:doubleKey">0045-7949:1995:Desai Y:finite:element:modelling</idno><idno type="wicri:Area/Main/Merge">004693</idno><idno type="wicri:Area/Main/Curation">003F71</idno><idno type="wicri:Area/Main/Exploration">003F71</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Finite element modelling of transmission line galloping</title><author><name sortKey="Desai, Y M" sort="Desai, Y M" uniqKey="Desai Y" first="Y. M." last="Desai">Y. M. Desai</name><affiliation wicri:level="4"><country>Canada</country><wicri:regionArea>Faculty of Engineering, The University of Manitoba, Winnipeg, Manitoba</wicri:regionArea><orgName type="university">Université du Manitoba</orgName><placeName><settlement type="city">Winnipeg</settlement><region type="state">Manitoba</region></placeName></affiliation></author><author><name sortKey="Yu, P" sort="Yu, P" uniqKey="Yu P" first="P." last="Yu">P. Yu</name><affiliation wicri:level="4"><country>Canada</country><wicri:regionArea>Faculty of Engineering, The University of Manitoba, Winnipeg, Manitoba</wicri:regionArea><orgName type="university">Université du Manitoba</orgName><placeName><settlement type="city">Winnipeg</settlement><region type="state">Manitoba</region></placeName></affiliation></author><author><name sortKey="Popplewell, N" sort="Popplewell, N" uniqKey="Popplewell N" first="N." last="Popplewell">N. Popplewell</name><affiliation wicri:level="4"><country>Canada</country><wicri:regionArea>Faculty of Engineering, The University of Manitoba, Winnipeg, Manitoba</wicri:regionArea><orgName type="university">Université du Manitoba</orgName><placeName><settlement type="city">Winnipeg</settlement><region type="state">Manitoba</region></placeName></affiliation></author><author><name sortKey="Shah, A H" sort="Shah, A H" uniqKey="Shah A" first="A. H." last="Shah">A. H. Shah</name><affiliation wicri:level="4"><country>Canada</country><wicri:regionArea>Faculty of Engineering, The University of Manitoba, Winnipeg, Manitoba</wicri:regionArea><orgName type="university">Université du Manitoba</orgName><placeName><settlement type="city">Winnipeg</settlement><region type="state">Manitoba</region></placeName></affiliation></author></analytic><monogr></monogr><series><title level="j">Computers and Structures</title><title level="j" type="abbrev">CAS</title><idno type="ISSN">0045-7949</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1995">1995</date><biblScope unit="volume">57</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="407">407</biblScope><biblScope unit="page" to="420">420</biblScope></imprint><idno type="ISSN">0045-7949</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0045-7949</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A computationally efficient, finite element idealization is presented to analyse galloping, which is characterized by large amplitude vibrations of iced, multi-span, electrical transmission lines. A three-node, isoparametric cable element having three translational and a torsional degree-of-freedom at each node is developed to model a conductor. Support insulator strings and remote conductor spans are represented by linear static springs. A transmission line's interactions with a support tower are modelled through the tower's equivalent stiffness at the conductor's suspension point. An expedient time marching scheme is developed to obtain the envelope of galloping. The scheme can be utilized to integrate dynamic equilibrium equations involving not only geometric and material nonlinearities but also nonlinear damping. Time integration is performed in the sub-space to minimize computational effort. The finite element model has been employed to successfully simulate field galloping records. It is shown that it is necessary to consider a multi rather than a single span for a conservative estimate of the galloping amplitudes to enable sufficient clearances to be designed between adjacent conductors.</div></front></TEI><affiliations><list><country><li>Canada</li></country><region><li>Manitoba</li></region><settlement><li>Winnipeg</li></settlement><orgName><li>Université du Manitoba</li></orgName></list><tree><country name="Canada"><region name="Manitoba"><name sortKey="Desai, Y M" sort="Desai, Y M" uniqKey="Desai Y" first="Y. M." last="Desai">Y. M. Desai</name></region><name sortKey="Popplewell, N" sort="Popplewell, N" uniqKey="Popplewell N" first="N." last="Popplewell">N. Popplewell</name><name sortKey="Shah, A H" sort="Shah, A H" uniqKey="Shah A" first="A. H." last="Shah">A. H. Shah</name><name sortKey="Yu, P" sort="Yu, P" uniqKey="Yu P" first="P." last="Yu">P. Yu</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003F71 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 003F71 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Canada
|area= ParkinsonCanadaV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:10B32CDAF4ADF68AB1DA94140FF49CDCDAC12221
|texte= Finite element modelling of transmission line galloping
}}
| This area was generated with Dilib version V0.6.29. |  |