Finite element model of the contact between a vibrating conductor and a suspension clamp |
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| Authors: | Fré dé ric Lé vesque,Sylvain Goudreau,Louis Cloutier,Alain Cardou |
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| Affiliation: | a GREMCA Laboratory (Groupe de REcherche en Mécanique des Conducteurs Aériens), Department of Mechanical Engineering, Université Laval, 1065 Avenue de la Médecine, Que., Canada G1V 0A6
b Department of Civil Engineering, Université de Sherbrooke, 2500 boul. Université, Sherbrooke, Que., Canada J1K 2R1 |
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| Abstract: | Aeolian vibrations may lead to failure of the overhead conductors of electrical transmission lines. Damages are caused by fretting fatigue at the attachment position of pieces of hardware. This phenomenon depends much on contact mechanics. The contact between a wire and a suspension clamp, a critical location, was modelled using the finite element method. Results from strain measurements on vibrating conductors served as input. The numerical results gave estimates of stresses and slip amplitudes. We can use these results to compute crack initiation criteria. The Ruiz and Chen criterion was chosen here and results compared well with experimental data. |
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| Keywords: | Fretting fatigue Contact mechanics Overhead conductor Aluminium wire |
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