【作者】 李黎； 曹化锦； 陈元坤； 夏正春；

【Author】 LI Li~(1,2),CAO Hua-jin~(1,2),CHEN Yuan-kun~(1,2),XIA Zheng-chun~3 (1.School of Civil Engineering & Mechanics,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China; 2.Hubei Key Laboratory of Control Structure,Huazhong University of Science and Technology,Wuhan,Hubei 430074,China; 3.China Railway Siyuan Survey and Design Group CO.,LTD.Wuhan 430063,China)

【机构】 华中科技大学土木工程与力学学院； 华中科技大学控制结构湖北省重点实验室； 中铁第四勘察设计院集团有限公司；

【摘要】 覆冰导线舞动对大跨越输电线路造成严重危害,目前对输电线舞动的研究多采用复杂的数值模拟方法。本文利用数值风洞技术对覆冰导线的气动特性进行了CFD数值模拟,采用有限元程序ANSYS/LS-DYNA建立用弹簧代替塔对输电线作用的弹簧—输电线模型,进行输电线的舞动分析,提出输电线舞动研究的简化分析方法并对其准确性进行了验证。此外,基于500kV海门到汕头榕江大跨越工程,进行了架空输电线的舞动简化仿真计算。更多还原

【Abstract】 Transmission conductors galloping caused serious harm,the present research on galloping mostly adopted complex numerical simulation.Numerical wind tunnel technology based on CFD numerical simulation was used to study the aerodynamic characteristics of the ice-accreted conductor,the springs-transmission lines model that spring was used to copy the actions of tower to transmission conductors was established using ANSYS/LS-DYNA,an galloping analysis was carried out based on this model and a simplified calculation method of transmission conductors galloping was proposed and verified.And also based on the Haimen-Shantou 500kV long-span power transmission tower line project,simplified calculation of transmission conductors galloping was performed.更多还原