Numerical study of aeolian vibration characteristics and fatigue life estimation of transmission conductors
The 2D computational fluid dynamics (CFD) model of transmission conductor is set up to simulate the aerodynamic forces varying with time on the conductor. Taking into account the geometrical nonlinearity of conductor lines, the finite element (FE) models of single span and two-span transmission line...
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| Veröffentlicht in: | PloS one 2022-01, Vol.17 (1), p.e0263163-e0263163 |
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| creator | Liu, Jiaqiong Yan, Bo Mou, Zheyue Gao, Yingbo Niu, Getu Li, Xiaolin |
| description | The 2D computational fluid dynamics (CFD) model of transmission conductor is set up to simulate the aerodynamic forces varying with time on the conductor. Taking into account the geometrical nonlinearity of conductor lines, the finite element (FE) models of single span and two-span transmission lines discretized with beam elements are established. By means of the FE models, the aeolian vibrations of the conductor lines excited by the aerodynamic forces under different wind velocities are numerically simulated. The nonlinear resonant characteristics, the amplitude-frequency relations of the conductor lines during aeolian vibration are investigated, and the influences of the span length as well as the initial tension in conductors on the aeolian vibration characteristics are analyzed. Furthermore, a 3D FE model of a conductor segment and the suspension clamp is created to study the stress distributions of the 3D model corresponding to different lines during aeolian vibrations. Finally, based on the stress analysis of the 3D model, the fatigue lives of the transmission conductors during aeolian vibration under different wind velocities are estimated. The jump phenomenon induced by the nonlinear vibration is reflected by the numerical simulation considering the geometric nonlinearity, and it is found that the energy balance principle (EBP) overestimates the vibration amplitudes because it cannot take the influences of the geometrical nonlinearity and span length into account. The obtained results may provide some instructions for the prevention design of aeolian vibration. |
| doi_str_mv | 10.1371/journal.pone.0263163 |
| format | Article |
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Taking into account the geometrical nonlinearity of conductor lines, the finite element (FE) models of single span and two-span transmission lines discretized with beam elements are established. By means of the FE models, the aeolian vibrations of the conductor lines excited by the aerodynamic forces under different wind velocities are numerically simulated. The nonlinear resonant characteristics, the amplitude-frequency relations of the conductor lines during aeolian vibration are investigated, and the influences of the span length as well as the initial tension in conductors on the aeolian vibration characteristics are analyzed. Furthermore, a 3D FE model of a conductor segment and the suspension clamp is created to study the stress distributions of the 3D model corresponding to different lines during aeolian vibrations. Finally, based on the stress analysis of the 3D model, the fatigue lives of the transmission conductors during aeolian vibration under different wind velocities are estimated. The jump phenomenon induced by the nonlinear vibration is reflected by the numerical simulation considering the geometric nonlinearity, and it is found that the energy balance principle (EBP) overestimates the vibration amplitudes because it cannot take the influences of the geometrical nonlinearity and span length into account. The obtained results may provide some instructions for the prevention design of aeolian vibration.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0263163</identifier><identifier>PMID: 35081176</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Aerodynamic forces ; Aerodynamics ; Aerospace engineering ; Aluminum ; Amplitudes ; Analysis ; Bending stresses ; Computational fluid dynamics ; Computer applications ; Computer Simulation ; Conductors ; Electric Conductivity ; Electric Wiring ; Energy balance ; Eolian processes ; Experiments ; Fatigue ; Fatigue life ; Fatigue testing machines ; Finite Element Analysis ; Finite element method ; Fluid dynamics ; Geometric nonlinearity ; Hydrodynamics ; Materials ; Materials fatigue ; Mathematical models ; Measurement ; Methods ; Models, Theoretical ; Nonlinear systems ; Numerical simulations ; Physical Sciences ; Poles and towers ; Power lines ; Semiconductors ; Stress analysis ; Three dimensional models ; Transmission lines ; Two dimensional models ; Vibration ; Vibration analysis ; Vibrations ; Vortices ; Wind ; Wind speed ; Wind velocities</subject><ispartof>PloS one, 2022-01, Vol.17 (1), p.e0263163-e0263163</ispartof><rights>COPYRIGHT 2022 Public Library of Science</rights><rights>2022 Liu et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2022 Liu et al 2022 Liu et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c692t-de9b3b5324baaefa155f6b76e4b9e0a1e0051576f54e6dc3b4bd9cdb507d579c3</citedby><cites>FETCH-LOGICAL-c692t-de9b3b5324baaefa155f6b76e4b9e0a1e0051576f54e6dc3b4bd9cdb507d579c3</cites><orcidid>0000-0002-1251-2674</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8791497/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8791497/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2100,2926,23865,27923,27924,53790,53792,79371,79372</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35081176$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Nawab, Yasir</contributor><creatorcontrib>Liu, Jiaqiong</creatorcontrib><creatorcontrib>Yan, Bo</creatorcontrib><creatorcontrib>Mou, Zheyue</creatorcontrib><creatorcontrib>Gao, Yingbo</creatorcontrib><creatorcontrib>Niu, Getu</creatorcontrib><creatorcontrib>Li, Xiaolin</creatorcontrib><title>Numerical study of aeolian vibration characteristics and fatigue life estimation of transmission conductors</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>The 2D computational fluid dynamics (CFD) model of transmission conductor is set up to simulate the aerodynamic forces varying with time on the conductor. Taking into account the geometrical nonlinearity of conductor lines, the finite element (FE) models of single span and two-span transmission lines discretized with beam elements are established. By means of the FE models, the aeolian vibrations of the conductor lines excited by the aerodynamic forces under different wind velocities are numerically simulated. The nonlinear resonant characteristics, the amplitude-frequency relations of the conductor lines during aeolian vibration are investigated, and the influences of the span length as well as the initial tension in conductors on the aeolian vibration characteristics are analyzed. Furthermore, a 3D FE model of a conductor segment and the suspension clamp is created to study the stress distributions of the 3D model corresponding to different lines during aeolian vibrations. Finally, based on the stress analysis of the 3D model, the fatigue lives of the transmission conductors during aeolian vibration under different wind velocities are estimated. The jump phenomenon induced by the nonlinear vibration is reflected by the numerical simulation considering the geometric nonlinearity, and it is found that the energy balance principle (EBP) overestimates the vibration amplitudes because it cannot take the influences of the geometrical nonlinearity and span length into account. The obtained results may provide some instructions for the prevention design of aeolian vibration.</description><subject>Aerodynamic forces</subject><subject>Aerodynamics</subject><subject>Aerospace engineering</subject><subject>Aluminum</subject><subject>Amplitudes</subject><subject>Analysis</subject><subject>Bending stresses</subject><subject>Computational fluid dynamics</subject><subject>Computer applications</subject><subject>Computer Simulation</subject><subject>Conductors</subject><subject>Electric Conductivity</subject><subject>Electric Wiring</subject><subject>Energy balance</subject><subject>Eolian processes</subject><subject>Experiments</subject><subject>Fatigue</subject><subject>Fatigue life</subject><subject>Fatigue testing machines</subject><subject>Finite Element Analysis</subject><subject>Finite element method</subject><subject>Fluid dynamics</subject><subject>Geometric nonlinearity</subject><subject>Hydrodynamics</subject><subject>Materials</subject><subject>Materials fatigue</subject><subject>Mathematical models</subject><subject>Measurement</subject><subject>Methods</subject><subject>Models, Theoretical</subject><subject>Nonlinear systems</subject><subject>Numerical simulations</subject><subject>Physical Sciences</subject><subject>Poles and towers</subject><subject>Power lines</subject><subject>Semiconductors</subject><subject>Stress analysis</subject><subject>Three dimensional models</subject><subject>Transmission lines</subject><subject>Two dimensional models</subject><subject>Vibration</subject><subject>Vibration analysis</subject><subject>Vibrations</subject><subject>Vortices</subject><subject>Wind</subject><subject>Wind speed</subject><subject>Wind 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study of aeolian vibration characteristics and fatigue life estimation of transmission conductors</title><author>Liu, Jiaqiong ; Yan, Bo ; Mou, Zheyue ; Gao, Yingbo ; Niu, Getu ; Li, Xiaolin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c692t-de9b3b5324baaefa155f6b76e4b9e0a1e0051576f54e6dc3b4bd9cdb507d579c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Aerodynamic forces</topic><topic>Aerodynamics</topic><topic>Aerospace engineering</topic><topic>Aluminum</topic><topic>Amplitudes</topic><topic>Analysis</topic><topic>Bending stresses</topic><topic>Computational fluid dynamics</topic><topic>Computer applications</topic><topic>Computer Simulation</topic><topic>Conductors</topic><topic>Electric Conductivity</topic><topic>Electric Wiring</topic><topic>Energy balance</topic><topic>Eolian processes</topic><topic>Experiments</topic><topic>Fatigue</topic><topic>Fatigue 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Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Jiaqiong</au><au>Yan, Bo</au><au>Mou, Zheyue</au><au>Gao, Yingbo</au><au>Niu, Getu</au><au>Li, Xiaolin</au><au>Nawab, Yasir</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical study of aeolian vibration characteristics and fatigue life estimation of transmission conductors</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2022-01-26</date><risdate>2022</risdate><volume>17</volume><issue>1</issue><spage>e0263163</spage><epage>e0263163</epage><pages>e0263163-e0263163</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>The 2D computational fluid dynamics (CFD) model of transmission conductor is set up to simulate the aerodynamic forces varying with time on the conductor. Taking into account the geometrical nonlinearity of conductor lines, the finite element (FE) models of single span and two-span transmission lines discretized with beam elements are established. By means of the FE models, the aeolian vibrations of the conductor lines excited by the aerodynamic forces under different wind velocities are numerically simulated. The nonlinear resonant characteristics, the amplitude-frequency relations of the conductor lines during aeolian vibration are investigated, and the influences of the span length as well as the initial tension in conductors on the aeolian vibration characteristics are analyzed. Furthermore, a 3D FE model of a conductor segment and the suspension clamp is created to study the stress distributions of the 3D model corresponding to different lines during aeolian vibrations. Finally, based on the stress analysis of the 3D model, the fatigue lives of the transmission conductors during aeolian vibration under different wind velocities are estimated. The jump phenomenon induced by the nonlinear vibration is reflected by the numerical simulation considering the geometric nonlinearity, and it is found that the energy balance principle (EBP) overestimates the vibration amplitudes because it cannot take the influences of the geometrical nonlinearity and span length into account. The obtained results may provide some instructions for the prevention design of aeolian vibration.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>35081176</pmid><doi>10.1371/journal.pone.0263163</doi><tpages>e0263163</tpages><orcidid>https://orcid.org/0000-0002-1251-2674</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Aerodynamic forces Aerodynamics Aerospace engineering Aluminum Amplitudes Analysis Bending stresses Computational fluid dynamics Computer applications Computer Simulation Conductors Electric Conductivity Electric Wiring Energy balance Eolian processes Experiments Fatigue Fatigue life Fatigue testing machines Finite Element Analysis Finite element method Fluid dynamics Geometric nonlinearity Hydrodynamics Materials Materials fatigue Mathematical models Measurement Methods Models, Theoretical Nonlinear systems Numerical simulations Physical Sciences Poles and towers Power lines Semiconductors Stress analysis Three dimensional models Transmission lines Two dimensional models Vibration Vibration analysis Vibrations Vortices Wind Wind speed Wind velocities |
| title | Numerical study of aeolian vibration characteristics and fatigue life estimation of transmission conductors |
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