期刊论文

中文

武汉轻工大学学报

2095-7386

2018

37

3

90-97

10.3969/j.issn.2095-7386.2018.03.016

本校为第一机构

输电线路运行时,由于受风的作用,导线时刻处于振动状态,高频微幅的微风振动使得输电线沿线产生不同程度的动弯应力,从而可能导致导线、地线出现疲劳断股的现象。目前,采用能量平衡法计算微风振动的方法被广泛研究,但其数值分析方法的复杂性导致其无法较好地应用于现场实际。笔者首先对光纤光栅微风振动传感器的悬臂梁式封装方式进行改进。为避免能量平衡法和传递矩阵法产生的计算误差,采用悬臂梁原理直接测量导线离线夹出口处的导线振动振幅,将其作为衡量导线动弯应变的指标来反映微风振动情况,在此基础上,给出相应的安装夹具结构图。为测试此光纤光栅微风振动传感器的工作特性,分别进行了实验室...

When the transmission line is running, the conductor is always in the vibration state due to the action of wind. The high-frequency and micro wind vibration modes of transmission lines causes different degrees of dynam-ic bending stress along the transmission line and may lead to fatigue and strand breakage of wires and ground wires. At present, the energy balance method is widely used to calculate the vibration of the breeze. However, the com-plexity of its numerical analysis makes it unable to be applied to the field practice. In this paper, the cantilever beam packaging method of FBG micro ...