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A Method for Settlement Detection of the Transmission Line Tower under Wind Force

In view of the settlement problem of transmission tower foundation, the vibration characteristics of transmission towers under wind force are measured experimentally. In this paper, the 110 kV cat head transmission tower of Xi’an Polytechnic University is measured and analyzed. Firstly, the accelera...

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Detalles Bibliográficos
Autores principales: Huang, Xinbo, Zhao, Yu, Zhao, Long, Yang, Luya
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6308533/
https://www.ncbi.nlm.nih.gov/pubmed/30544698
http://dx.doi.org/10.3390/s18124355
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author Huang, Xinbo
Zhao, Yu
Zhao, Long
Yang, Luya
author_facet Huang, Xinbo
Zhao, Yu
Zhao, Long
Yang, Luya
author_sort Huang, Xinbo
collection PubMed
description In view of the settlement problem of transmission tower foundation, the vibration characteristics of transmission towers under wind force are measured experimentally. In this paper, the 110 kV cat head transmission tower of Xi’an Polytechnic University is measured and analyzed. Firstly, the acceleration sensor and meteorological sensor are installed on the tower to collect the vibration response and environment parameters of the tower in real time. Then, an experiment platform is built to simulate the tower settlement, and the vibration response of the tower after settlement is measured in time. Finally, the low-order modal frequencies of the transmission tower before and after settlement under wind force load are extracted by stochastic subspace identification (SSI), and the relationship between modal frequencies of different modes is analyzed via temperature correction. By comparison and analysis, it is obvious that the X-direction modal frequencies before and after settlement under natural wind load are changed, and the change rate increases with the increase of settlement displacement, which can be used as effective evidence for judging the settlement of transmission tower foundation.
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spelling pubmed-63085332019-01-04 A Method for Settlement Detection of the Transmission Line Tower under Wind Force Huang, Xinbo Zhao, Yu Zhao, Long Yang, Luya Sensors (Basel) Article In view of the settlement problem of transmission tower foundation, the vibration characteristics of transmission towers under wind force are measured experimentally. In this paper, the 110 kV cat head transmission tower of Xi’an Polytechnic University is measured and analyzed. Firstly, the acceleration sensor and meteorological sensor are installed on the tower to collect the vibration response and environment parameters of the tower in real time. Then, an experiment platform is built to simulate the tower settlement, and the vibration response of the tower after settlement is measured in time. Finally, the low-order modal frequencies of the transmission tower before and after settlement under wind force load are extracted by stochastic subspace identification (SSI), and the relationship between modal frequencies of different modes is analyzed via temperature correction. By comparison and analysis, it is obvious that the X-direction modal frequencies before and after settlement under natural wind load are changed, and the change rate increases with the increase of settlement displacement, which can be used as effective evidence for judging the settlement of transmission tower foundation. MDPI 2018-12-10 /pmc/articles/PMC6308533/ /pubmed/30544698 http://dx.doi.org/10.3390/s18124355 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Huang, Xinbo
Zhao, Yu
Zhao, Long
Yang, Luya
A Method for Settlement Detection of the Transmission Line Tower under Wind Force
title A Method for Settlement Detection of the Transmission Line Tower under Wind Force
title_full A Method for Settlement Detection of the Transmission Line Tower under Wind Force
title_fullStr A Method for Settlement Detection of the Transmission Line Tower under Wind Force
title_full_unstemmed A Method for Settlement Detection of the Transmission Line Tower under Wind Force
title_short A Method for Settlement Detection of the Transmission Line Tower under Wind Force
title_sort method for settlement detection of the transmission line tower under wind force
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6308533/
https://www.ncbi.nlm.nih.gov/pubmed/30544698
http://dx.doi.org/10.3390/s18124355
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