![](/images/graphics-bg.png)
Statistical Analysis of Wind-Induced Dynamic Response of Power Towers and Four-Circuit Transmission Tower-Line System
Joint Authors
Wang, Fuwang
Ju, Yanzhong
Zhang, Xiaolei
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-12
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Abstract EN
Only one wind field model loading the transmission tower or the tower-line system was investigated in the previous studies, while the influence of two different wind field models was not considered.
In addition, only one sample of the wind speed random process was used in the past numerical simulations, and the multiple dynamic response statistical analysis should be carried out.
In this paper, statistical analysis of the wind-induced dynamic response of single towers and the transmission tower-line system is performed with the improved accuracy.
A finite element model of the transmission tower-line system (the tower consisted of both steel tubes and angel steels) is established by ANSYS software.
The analysis was performed by three statistical methods.
The effects of the length of the time history and of the number of samples were investigated.
The frequency histograms of samples follow the Gaussian distribution.
The characteristic statistical parameters of samples were random.
The displacements and the axial forces of the low tower are larger than those of the high tower.
Two wind field models were applied to simulate the wind speed time history.
In field 1 model, Davenport wind speed spectrum and Shiotani coherence function were applied, while in field 2 model Kaimal wind speed spectrum and Davenport coherence function were used.
The results indicate that wind field 1 is calmer than wind field 2.
The displacements and the axial forces of the tower-line system are less than those of single towers, which indicate damping of wind-induced vibrations by the transmission line.
An extended dynamic response statistical analysis should be carried out for the transmission tower-line system.
American Psychological Association (APA)
Zhang, Xiaolei& Ju, Yanzhong& Wang, Fuwang. 2018. Statistical Analysis of Wind-Induced Dynamic Response of Power Towers and Four-Circuit Transmission Tower-Line System. Shock and Vibration،Vol. 2018, no. 2018, pp.1-18.
https://search.emarefa.net/detail/BIM-1215298
Modern Language Association (MLA)
Zhang, Xiaolei…[et al.]. Statistical Analysis of Wind-Induced Dynamic Response of Power Towers and Four-Circuit Transmission Tower-Line System. Shock and Vibration No. 2018 (2018), pp.1-18.
https://search.emarefa.net/detail/BIM-1215298
American Medical Association (AMA)
Zhang, Xiaolei& Ju, Yanzhong& Wang, Fuwang. Statistical Analysis of Wind-Induced Dynamic Response of Power Towers and Four-Circuit Transmission Tower-Line System. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-18.
https://search.emarefa.net/detail/BIM-1215298
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215298