Aeolian vibration control of overhead electrical transmission line conductors

Book · Fri Dec 01 04:00:00 EST 1995

OSTI ID:129015

Sireteanu, T; Migdalovici, M; Videa, E ^[1]

---

1. Inst. of Solid Mechanics, Bucharest (Romania). Dept. of Structural Dynamics

The paper presents a mathematical model and an analytical procedure to control the wind induced vibration of a single conductor such that the dynamic strain about the suspension clamp is kept within the imposed safety limits. The method is based on the energy balance principle which takes into account the wind energy input, the energy dissipated by the conductor self-damping properties and by the Stockbridge dampers which are frequently used for the aeolian vibration control. The damping characteristics of the Stockbridge dampers are expressed in terms of their mechanical impedance determined experimentally on a vibration exciter. The method can be used to establish whether or not it is necessary to equip the conductor by Stockbridge dampers, which type of damper is more suitable for a given conductor, span length and EDS (every day stress), the necessary number of dampers as well as their optimum spacing on the conductor.

• OSTI ID: 129015
• Report Number(s): CONF-950740--; ISBN 0-7918-1339-8
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
COMPUTERIZED SIMULATION
DESIGN
ELECTRIC CONDUCTORS
EXPERIMENTAL DATA
INSTALLATION
MECHANICAL VIBRATIONS
MITIGATION
PERFORMANCE
POWER TRANSMISSION LINES
SHOCK ABSORBERS
STRESS ANALYSIS
WIND LOADS