Vol.124, No.1, 2020, pp.287-302, doi:10.32604/cmes.2020.09118
OPEN ACCESS
ARTICLE
Analysis of the Quasi-Static Buffeting Responses of Transmission Lines to Moving Downburst
  • Qigang Sun1, Jian Wu1, Dahai Wang2,*, Yue Xiang2, Haitao Liu1, Xiaobin Sun3
1 Economic and Technology Research Institute of State Grid Shandong Electric Power Company, Jinan, 250000, China
2 Wuhan University of Technology, Wuhan, 430070, China
3 State Grid Shandong Electric Power Company, Jinan, 250000, China
* Corresponding Author: Dahai Wang. Email: wangdahai@whut.edu.cn
(This article belongs to this Special Issue: Numerical Modeling and Simulation for Structural Safety and Disaster Mitigation)
Received 13 November 2019; Accepted 06 February 2020; Issue published 19 June 2020
Abstract
Downburst event is identified as a major cause to failure of transmission lines in non-coastal regions. In this paper, a novel nonlinear analytical frame for quasi-static buffeting responses of hinged and multi-span insulator-line systems are derived based on the theory of cable structure. The closed-form solutions are presented and applied to predict nonlinear response including displacements and other reactions of the system subjected to a moving downburst wind in a case study. Accuracy and efficiency of the derived analytical frame are validated via comparisons with results from finite element method.
Keywords
Downburst; wind; transmission line; buffeting responses; cable; quasistatic
Cite This Article
Sun, Q., Wu, J., Wang, D., Xiang, Y., Liu, H. et al. (2020). Analysis of the Quasi-Static Buffeting Responses of Transmission Lines to Moving Downburst. CMES-Computer Modeling in Engineering & Sciences, 124(1), 287–302.