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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: email

(This article belongs to this Special Issue: Numerical Modeling and Simulation for Structural Safety and Disaster Mitigation)

Computer Modeling in Engineering & Sciences 2020, 124(1), 287-302. https://doi.org/10.32604/cmes.2020.09118

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.

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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.

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cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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