A Simulation Analysis Method for Aerodynamic Impact De-icing of Overhead Ground Wires

Abstract

This invention discloses a simulation analysis method for pneumatic impact de-icing of overhead ground wires, comprising: acquiring the physical parameters and icing material parameters of the target iced ground wire, and performing modeling preprocessing on the parameters; the modeling preprocessing includes establishing a ground wire geometric model based on the structural characteristics of the target iced ground wire, and setting the icing layer on the outer surface of the ground wire according to the actual thickness; constructing a finite element model of the iced ground wire based on the ground wire geometric model and icing material parameters; using the maximum stress shedding criterion as the basis for judging icing shedding, and analyzing the stress state of the icing unit; judging whether the icing has detached based on the stress analysis results, and recording the icing length and maximum icing thickness of the icing area on the impact surface and the back impact surface; generating an icing removal effect dataset based on the icing results under different icing thicknesses and different impact load combinations. This invention can effectively guide the parameter optimization and safety design of pneumatic de-icing devices, avoiding damage to the conductor.

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