A novel ice-shedding model for overhead power line conductors with the consideration of adhesive/cohesive forces

被引：58

作者：

Ji, Kunpeng ^{[1
]}

Rui, Xiaoming ^{[1
]}

Li, Lin ^{[1
]}

Leblond, Andre ^{[2
]}

McClure, Ghyslaine ^{[3
]}

机构：

[1] North China Elect Power Univ, Sch Energy Power, Mech Engn, Beijing 102206, Peoples R China

[2] Hydroquebec TransEnergie, Montreal, PQ H5B 1H7, Canada

[3] McGill Univ, Dept Civil Engn & Appl Mech, Montreal, PQ H3A 0C3, Canada

来源：

COMPUTERS & STRUCTURES | 2015年 / 157卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Transmission line; Ice shedding; Atmospheric icing; Iced cables; Dynamic analysis; ELECTRICAL TRANSMISSION-LINES; DYNAMIC-RESPONSE; ADHESION; STRENGTH;

D O I：

10.1016/j.compstruc.2015.05.014

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

An ice-detachment failure model is proposed for iced overhead electrical conductors to predict the transient response of line systems subjected to shock loads. The model considers the bending strains in the ice deposit, the adhesive force at the ice-cable interface and the cohesive force within the ice. It is implemented into finite element analysis by setting a critical vertical acceleration corresponding to inertia forces overcoming the adhesive/cohesive forces on the ice chunk. The model is validated by results from reduced and real scale de-icing tests of glaze ice but the approach can apply to different types of atmospheric icing. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：153 / 164

页数：12

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