Abstract
The aeroelastic behavior of the overhead telecommunication line of figure-8 section is studied analytically in order to investigate the wind-induced galloping motion of the line. The governing equations of the telecommunication line are firstly derived taking account of its torsional displacement. Numerical analyses are also made on the wind-induced static deformation, the linear free oscillation under wind load and the dynamic response in a steady wind. The results of numerical analyses explain well the experimental fact seen in the wind tunnel test reported in Refs. 1)-4) and it is found that the galloping of the figure-8 telecommunication line can be simulated to some degree using the present analysis.