A Contrast on Conductor Galloping Amplitude Calculated by Three Mathematical Models with Different DOFs

Table 1

Parameter employed in this analysis.

Parameters	Notation	Units	Data
Wind velocity	𝑈	m/s	9
Elastic modulus	𝐸	GPa	47.8
Polar moment of inertia	𝐼	Kg·m (10^−3)	0.3334
Diameter of conductor	𝐷	mm	28.6
Horizontal initial tension	𝑇0	kN	30
Span length	𝑙	m	125.88
Cross-sectional area	𝐴	mm^2	423.24
Mass of unit length	𝑚	kg/m	2.3789
Torsional stiffness	𝐺𝐽	N·m^2/rad	101
Initial ice angle	𝜃	°	40
Damping ratio	𝜉𝑦		0.04
	𝜉𝑧		0.02
	𝜉𝜃		0.06