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来源：百度知道 编辑：UC知道 时间：2024/06/05 04:26:09
1. Introduction
Overhead transmission lines for transport of high-voltage electricity are cables made of aluminium alloy, suspended between high towers in the countryside. One cable of several kilometers between two anchoring towers and carried by several towers in a row is called a section. The part of a section that is suspended between two towers is called a span. As the cable is connected to the towers by a freely movable suspension string or isolator, the dynamical motion of neighbouring spans are coupled. In wintertime when the cable is covered by snow or ice, the cables are vulnerable to large-scale vertical vibrations in combination with a torsional vibration sustained by steady crosswinds. This aero-elastic instability is known as galloping [1–5]. For high enough amplitudes neighbouring conductors may get close enough for the air-insulation to break down, causing a short-circuit and structural damage to the cables (Figure 1).
Overhead transmission lines for transport of high-voltage electricity are cables made of aluminium alloy, suspended between high towers in the countryside. One cable of several kilometers between two anchoring towers and carried by several towers in a row is called a section. The part of a section that is suspended between two towers is called a span. As the cable is connected to the towers by a freely movable suspension string or isolator, the dynamical motion of neighbouring spans are coupled. In wintertime when the cable is covered by snow or ice, the cables are vulnerable to large-scale vertical vibrations in combination with a torsional vibration sustained by steady crosswinds. This aero-elastic instability is known as galloping [1–5]. For high enough amplitudes neighbouring conductors may get close enough for the air-insulation to break down, causing a short-circuit and structural damage to the cables (Figure 1).
1 。导言
架空输电线路的运输高压电力电缆是铝合金制成的，暂停高塔在农村。一根电缆的几公里两塔和锚进行几个塔连续被称为节。该节的一个组成部分是暂停两塔被称为跨度。由于电缆连接到塔的自由移动暂停字符串或隔离，动态运动邻国跨越耦合。冬季时，电缆所覆盖冰雪，电缆很容易受到大规模的垂直振动结合扭振持续稳步[这个意思不知道：crosswinds] 。这种空气动力弹性不稳定被称为舞动[ 1-5 ] 。不够高，振幅为邻近导体可能得到足够接近空气绝缘故障，造成短路和结构损坏的电缆（图1 ） 。
可能有些地方不通哎，要是错了我也没办法了。。。。
先对你说声“对不起”哟~如果需要的话。。。。。
导言
架空输电线路的运输高压电力电缆的铝合金制成的，暂停高塔在农村。一根电缆的几公里两塔和锚进行几个塔连续被称为节。该节的一个组成部分是暂停两塔被称为跨度。由于电缆连接到塔的自由移动暂停字符串或隔离，动态运动邻国跨越耦合。冬季时，电缆所覆盖冰雪，电缆很容易受到大规模的垂直振动结合扭振持续稳步crosswinds 。这种空气动力弹性不稳定被称为舞动[ 1-5 ] 。不够高，振幅为邻近导体可能得到足够接近空气绝缘故障，造成短路和结构损坏的电缆（图1 ） 。
来自 谷歌