输电高空作业无人机协同后备保护装置结构有限元分析  

Finite element analysis of the structure of drone-assisted backup protection device for work on transmission lines at heights

作　　者：乔丕凡 陈殿鹏 于欣 张磊 王立勇 QIAO Pifan;CHEN Dianpeng;YU Xin;ZHANG Lei;WANG Liyong(State Grid Weifang Power Supply Company,Weifang,Shandong 261021)

机构地区：[1]国网山东省电力公司潍坊供电公司,山东潍坊261021

出　　处：《电气技术》2024年第10期62-66,共5页Electrical Engineering

基　　金：国网山东省电力公司潍坊供电公司群众性创新项目(2024-ZH006)。

摘　　要：目前,高压输电线路高空作业人员攀登杆塔多采用双钩或安全腰带和后备保护绳交替保护的方式。针对该类作业劳动效率低、劳动强度大等问题,本文设计一种无人机搭载的用于高空作业后备保护的挂架,通过无人机搭载将挂架安装在铁塔塔材上,配合绝缘绳索为人员爬塔提供防坠落保护,从而降低劳动强度和人员高处坠落的风险。本文采用向量式有限元(VFIFE)模型对无人机协同后备保护装置进行研究,基于向量式有限元建立后备保护装置的运动控制方程,并利用中央差分法求解结构的动力响应。仿真结果表明,在静荷载和动荷载的叠加作用下,输电高空作业无人机协同后备保护装置的结构设计和机械强度合理有效,可以作为高空作业人员防坠落保护装置来提高作业安全性。Currently,personnel engaged in work on transmission lines at heights primarily use a double-hook system or safety belts with secondary protection ropes for alternating protection when climbing poles and towers.In response to issues such as high labor intensity and low work efficiency associated with these operations,a drone-mounted bracket for secondary fall protection during work at heights is designed.This bracket,delivered by a drone to an appropriate position on the power pylon,works in conjunction with insulating ropes to provide fall protection for personnel climbing the tower,effectively reducing labor intensity and the safety risks associated with falls from heights.In this paper,vector form intrinsic finite element(VFIFE)models are applied to study the drone-assisted backup protection device for aiding in equal potential operations.Initially,a VFIFE-based motion control equation for the equal potential operation auxiliary tool is established.Subsequently,the central difference method is employed to solve for the structure’s dynamic response.The conclusion reached is that the structural design of the drone-assisted tool for work at heights is rational and effective under both static and combined static and dynamic load conditions.It can serve as an efficient fall protection device,significantly enhancing operational safety.

关 键 词：防坠落保护 结构有限元分析 应力分析 

分 类 号：TM75[电气工程—电力系统及自动化]