摘要
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.
基金
supported in part by Science and Technology Foundation of State Grid Shandong Electric Power Company(Grant No.52062518000U)
National Natural Science Foundation of China(Grant Nos.51720105005 and 51478373)
by Science and Technology Foundation of State Grid Shandong Electric Power Company(Grant No.52062518000U)
National Natural Science Foundation of China(Grant Nos.51720105005 and 51478373)are greatly acknowledged.
