As frequently-used anti-galloping devices

damping spacers and double-swinging protectors were heavily applied to UHV overhead transmission lines. In order to analyze and evaluate the influence of both types of devices on galloping of iced large-section and bundled conductors

Dirac function and the modeling method of curved beam were both introduced to define their characteristic of distribution along the wire with large cross section. The results show that parameter optimization and installation would affect the distributed mass

damping characteristics

and other structure parameters of UHV transmission line

and then it would change its galloping properties. Optimization of the design and arrangements of this kind of anti-galloping fittings could not only improve the critical wind speed of UHV conductor system to enhance its capacity of wind resistance

but also suppress vibration of UHV conductors in the situation that actual wind speed is slightly larger than the critical wind speed. It provides that theoretic reference for the optimization design as well as arrangements of anti-galloping fittings for UHV overhead transmission lines.