A single-span aeroelastic model of an overhead electrical power transmission line with guyed lattice towers A study by W.E. Lin, E. Savory, R.P. McIntyre, C.S. Vandelaar & J.P.C. King The University of Western Ontario With funding from Friday 15 th July 2011, ICWE 13, Amsterdam, The Netherlands
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A single-span aeroelastic model of an overhead electrical power transmission line with guyed lattice towers A study by W.E. Lin, E. Savory, R.P. McIntyre,
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A single-span aeroelastic model of an overhead electrical power transmission line
with guyed lattice towers
A study by
W.E. Lin, E. Savory, R.P. McIntyre, C.S. Vandelaar & J.P.C. King
The University of Western Ontario
With funding from
Friday 15th July 2011, ICWE 13, Amsterdam, The Netherlands
Overview• Scope: design and test a physical model of a section
that failed due to downdraft outflow winds
• Direct comparison of tower and line response to synoptic wind profile versus downdraft outflow wind profile
• Aeroelastic model of a transmission line system with length scaling of 1:100
• In successive order, the experimental model was subjected to boundary layer and downdraft outflow wind forcing in a single test facility
Purpose and motivation
• Examine feasibility of the required design and fabrication
• Characterize the structural response to the two different types of wind forcing
• Why do transmission line failures occur in downdraft winds?