1000 kV南荆一回管型硬跳线屏蔽环脉动风振分析  

Fluctuating Wind Vibration Analysis of the Tubular Rigid Jumper Shielding Ring in the 1000kV Nan-Jing Loop Line

作　　者：董晓虎[1] 雷成华[1] 李荣超[1] 姜岚[2] 张宇娇[2] 杨骐[2] DONG Xiaohu LEI Chenghua LI Rongchao JIANG Lan ZHANG Yujiao Yang Qi(Maintenance Company, State Grid Hubei Electric Power Company, Wuhan 430000, China China Three Gorges University, Yichang 443000, China)

机构地区：[1]国网湖北省电力公司检修公司,湖北武汉430000 [2]三峡大学,湖北宜昌443000

出　　处：《水电与新能源》2017年第3期48-51,共4页Hydropower and New Energy

摘　　要：利用Davenport风速谱方法,模拟脉动风速时程并转化为风压时程,对特高压屏蔽环有限元模型进行瞬态动力学分析。分析表明:屏蔽环风振效应显著,最大振动响应主要集中在环体部分,屏蔽环设计时应加强力学性能计算尤其是风振响应分析。A transient dynamic analysis is carried out on the fluctuating wind vibration of the tubular rigid jumper shielding ring in the 1000kV Nan-Jing loop line. With the Davenport wind velocity spectrum method,the fluctuating wind velocity time history is simulated and converted to the wind load time history,and applied to the finite element model of the shielding ring. The results show that the wind vibration effect of the shielding ring is significant,and the maximum vibration mainly occurs in the ring body. Thus,it is of great importance of the mechanical performance calculation in the design of the shielding ring,especially the wind vibration analysis.

关 键 词：1000KV交流特高压 屏蔽环 脉动风荷载 结构振动 

分 类 号：TM81[电气工程—高电压与绝缘技术]