湖南电力 ›› 2023, Vol. 43 ›› Issue (4): 90-94.doi: 10.3969/j.issn.1008-0198.2023.04.013

• 经验与探讨 • 上一篇    下一篇

一种环链连接金具的摩擦磨损特性有限元仿真分析

曾萍1, 刘志刚1, 黄长勇1, 雒方旭1, 张华鹏2, 蔡新景2   

  1. 1.国网江西省电力有限公司吉安供电分公司,江西 吉安 343009;
    2.沈阳工业大学电气工程学院,辽宁 沈阳 110870
  • 收稿日期:2023-05-22 修回日期:2023-06-25 出版日期:2023-08-25 发布日期:2023-09-07
  • 通信作者: 蔡新景(1980),男,博士,教授,通信作者,研究方向为气体放电与等离子技术、电力系统过电压及其防护。
  • 作者简介:曾萍(1981),女,高级工程师,从事电力设备运维技术研究。
  • 基金资助:
    国家电网公司科技项目(SGJXJA00XTJS2250214)。

Finite Element Simulation of Abrasive Wear Characteristics for a Ring Chain Line Fitting

ZENG Ping1, LIU Zhigang1, HUANG Changyong1, LUO Fangxu1, ZHANG Huapeng2, CAI Xinjing2   

  1. 1. State Grid Ji'an Power Supply Company, Ji'an 343009, China;
    2. Department of Electrical School, Shenyang University of Technology, Shenyang 110870, China
  • Received:2023-05-22 Revised:2023-06-25 Online:2023-08-25 Published:2023-09-07

摘要: 处于大风垭口地区的电力金具常常发生严重磨损。为深入研究金具的磨损失效机理,采用有限元方法对一种环链连接金具磨损过程进行了仿真计算。研究结果表明,U型螺丝最大应力为692.2 MPa,远超45号钢的屈服强度355 MPa;磨损1 400次后U型螺丝接触区域出现Z轴负方向应变,在X方向和Y方向均有向外发生塑性变形的趋势;U型螺丝磨损速率具有从大到小再从小到大的周而复始的变动趋势。

关键词: 线路金具, 摩擦磨损, 应力, 应变, 剩余尺寸, 屈服强度

Abstract: Electric power fittings located in the strong wind area are prone to abrasive wear. In order to study abrasive wear mechanism of electric power fittings, the wear process of a ring chain line fitting is simulated based on the finite element method. It is indicated that the maximum stress of the U-shaped ring is 692.2 MPa, far exceeding the yield strength of 45# steel which is equal to 355 MPa. After 1 400 times of abrasive wear, a negative strain along the Z-axis is shown on the contact area of the U-shaped ring, and plastic deformation outward in both the X and Y directions is observed. The wear rate of U-shaped ring makes a cycle that repeats itself from large to small and then from small to large.

Key words: line fitting, abrasive wear, stress, strain, remain dimension, yield strength

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