Analysis on galloping models of iced transmission lines

摘要

Based on the cable theory and the curved beam theory, the 3-DOF galloping model of iced transmission lines was established. According to the Hamilton principle, the three-freedom galloping models based on cable theory, based on the curved beam theory, based on the curved beam theory considering the boundary stiffness and galloping models based on the curved beam theory with both the boundary stiffness and boundary mass considered were developed utilizing the Mathematica procedure. The results show that the data obtained by the galloping model based on the curved beam theory with the adjacent stiffness and the insulator string mass taken into account are consistent basically with the test results.