Experimental Evaluation of S-N Curves for Drake ACSR Conductor

This paper reports on an experimental effort to generate S-N (dynamic stress-fatigue life) curves for a Drake ACSR (aluminum conductor steel reinforced) conductor. In the testing, aeolian vibrations were simulated by mechanical means in a controlled laboratory environment for one set of line conditi...

Full description

Saved in:
Bibliographic Details
Published in:Journal of energy engineering 1986-08, Vol.112 (2), p.138-151
Main Authors: Ramey, G. E, Duncan, Roy R, Brunair, Robert M
Format: Article
Language:English
Subjects:
TECHNICAL PAPERS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper reports on an experimental effort to generate S-N (dynamic stress-fatigue life) curves for a Drake ACSR (aluminum conductor steel reinforced) conductor. In the testing, aeolian vibrations were simulated by mechanical means in a controlled laboratory environment for one set of line conditions. Fatigue data for the first five strand breaks were evaluated, and S-N curves for the first through fifth strand breaks were fit to the data using linear regression analyses. A minimum of four duplicative tests at each stress level tested were conducted to allow an evaluation of the statistical parameters and to provide statistical credibility to the results. A pseudo endurance limit of 21.31 MPa (3.09 ksi) was estimated from the S-N data. The S-N curves generated in this study provide much needed information for transmission line designers on the fatigue characteristics of Drake ACSR conductors. It is recommended that the S-N curves be used in conjunction with a probabilistic approach in designing transmission lines for aeolian fatigue.
ISSN:0733-9402
1943-7897
DOI:10.1061/(ASCE)0733-9402(1986)112:2(138)