电力勘测设计Issue(12)：33-39,7.DOI:10.13500/j.dlkcsj.issn1671-9913.2025.12.006
基于ANSYS APDL的大跨越线路悬索找形及力学计算
Form Finding and Mechanical Calculation of Large-Span Transmission Lines Based on ANSYS APDL
张瑞永 1赵新宇 1姚成1
作者信息
- 1. 中国能源建设集团江苏省电力设计院有限公司,江苏 南京 211102
- 折叠
摘要
Abstract
Large-span transmission lines feature significant spans and high crossing towers,with accessories such as spacers and vibration prevention facilities substantially increasing aluminum stress at suspension points and sag of conductors.Existing analytical calculation methods overlook the impact of accessories and the deflection of suspension strings,which may lead to tensions at conductor suspension points exceeding safe thresholds,thereby posing safety hazards such as insufficient navigation clearance.To address this complex issue,this study proposes the adoption of the APDL finite element method for detailed mechanical calculation and analysis of large-span transmission lines.Initially,the parabolic method is utilized to create preliminary models of conductors and tension strings for rapid simulation of their geometric shapes.Shape-finding calculations are conducted to determine the stress state under average temperature conditions,considering the influence of suspension string deflection on conductor stress during this process to ensure the accuracy of the analysis.From the initial state under average temperature conditions,the material thermal expansion characteristics and temperature variations of the conductors are fully taken into account.Further iterative calculations are performed to determine the equilibrium state of the conductors under maximum line temperature conditions,completing detailed calculations and analyses of element stress,node displacement,and conductor sag.This provides robust scientific support for optimizing the design of large-span transmission lines.关键词
大跨越输电线路/找形/ANSYS参数化设计语言/力学计算/弧垂Key words
large-span transmission line/form finding/ANSYS APDL/mechanical calculation/sag分类
信息技术与安全科学引用本文复制引用
张瑞永,赵新宇,姚成..基于ANSYS APDL的大跨越线路悬索找形及力学计算[J].电力勘测设计,2025,(12):33-39,7.
