Influence of the catenary parameter (H/w) on the fatigue life of overhead conductors

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• 作者：R.B. Kalombo ; ^{badibanga12@gmail.com} ; M.S. Pestana ; J.L.A. Ferreira ; C.R.M. da Silva ; J.A. Araú ; jo ; ^{jaaunb@gmail.com}
• 关键词：Fretting fatigue ; Fatigue of conductors ; H/w parameter ; Mean stress ; AAAC 900 MCM ; ACSR Tern
• 刊名：Tribology International
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：108
• 期：Complete
• 页码：141-149
• 全文大小：2300 K
• 卷排序：108

文摘

New experimental data to evaluate the effects of the parameter (H/w) on the fretting fatigue life of AAAC 900 MCM and of ACSR Tern conductors. For a same value of H/w, the ACSR Tern sustained a significantly higher life than the AAAC 900 MCM, independently of the level of stress amplitude considered. The AAAC 900 MCM wires presented quasi planar fracture with significant crack propagation, while a 45° ductile fracture predominated in the ACSR Tern. Actual strains/stress in the wires can in fact be approximated by a linear function of H/w.