Theoretical Analysis and Experimental Validation on Galloping of Iced Transmission Lines in a Moderating Airflow

Table 1

Parameters of iced transmission lines.

Notation	Parameter	Value
A	Cross-sectional area	423.24 mm^2
D	Diameter of a bare cable	0.0286 m
E	Elasticity modulus	4.78 × 10^10 N·m^−2
GI	Torsional stiffness	101 Nm
J	Rotational inertia	0.333 × 10^−3kg·m^2
l	Cable length	125.88 m
m	Cable density	2.379 kg·m^−1
T0	Initial tension	30 kN
θ0	Initial angle of ice accretion	0.698 rad
ρ	Air density	1.29 kg·m^−3
	In-plane damping ratio	0.01
ζθ	Torsional damping ratio	0.04