ON THE INFLUENCE OF FLEXURAL RIGIDITY AND WIRE LENGTH ON POWER LINE DEFORMATION

Abstract

Numerical studies of the deformation dynamics of a high-voltage transmission line conductor were based on the hypothesis of a perfectly flexible model, taking into account compressive and tensile forces. Of practical inter est is the effect of the conductor's bending stiffness on its deformation state depending on the span length. Nonli near equations of conductor dynamics are solved using the finite difference method using an explicit scheme. The ultimate equilibrium state of a wire is determined using a dynamic problem formulation method. A numerical ex periment is used to determine the effect of bending stiffness on the wire's equilibrium shape. A range of wire lengths is determined for which bending stiffness can be ignored and calculations can be performed using a per fectly flexible system model, which in some cases allows for analytical solutions.