✦ LIBER ✦

THE FREE VIBRATION OF LONG-SPAN TRANSMISSION LINE CONDUCTORS WITH DAMPERS

✍ Scribed by H.Q. Wang; J.C. Miao; J.H. Luo; F. Huang; L.G. Wang

Book ID: 102606979
Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 257 KB
Volume: 208
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1997.1196

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✦ Synopsis

The free vibration of a transmission line conductor equipped with a number of Stockbridge dampers is modelled by a differential equation of motion of a tensioned beam acted on by concentrated frequency dependent forces, and an exact solution is obtained using integral transformation. By evaluation through aeolian vibration level computation, the expressions obtained for the mode shapes can be easily used to predict accurately the overall strains of lines in operation or under design. Numerical examples show that the usual sinusoidal mode shapes can be significantly distorted by the dampers to give rise to dangerous strains.

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