电网技术2011，Vol.35Issue(5)：21-26,6.
1000kV输电塔横风向振动风洞试验研究
Wind Tunnel Test on Across-Wind Vibration of 1000kV UHV Transmission Tower
摘要
Abstract
To research across-wind-induced vibration response of ultra high voltage (UHV) transmission tower and that of tower-line coupling system, taking a certain 1000kV transmission line as research object, through wind tunnel test of aeroelastic model the across-wind-induced vibration responses of both single tower and tower-line coupling system under turbulent flow are researched. Test results show that in turbulent wind field the across-wind-induced vibration response and the along-wind-induced vibration response of single transmission tower are in the same order of magnitude.In tower-line coupling system, the across-wind acceleration response of the tower is larger than that of the single tower; the across-wind displacement response at the end of the crossbeam is larger than that of the single tower and the across-wind displacement response at the tower body is smaller that that of the single tower. The influence of high order vibration modes on the acceleration and displacement responses cannot be neglected, and there is a certain extent of background response involved in displacement response. Thus in the wind force proofing design of UHV transmission tower the influence of across-wind response should be taken into account.关键词
1000kV输电线路/风洞试验/单塔/塔-线体系/横风向响应/气弹模型Key words
1000 kV transmission line/ wind tunnel test/single tower/ tower-line coupling system/ across-wind response/aeroelastic model分类
信息技术与安全科学引用本文复制引用
谢强,管政,严承涌..1000kV输电塔横风向振动风洞试验研究[J].电网技术,2011,35(5):21-26,6.基金项目
国家自然科学基金项目(50508026,50778135) （50508026,50778135）
国家电网公司科技项目(SGKJJSKF[2008-536]) （SGKJJSKF[2008-536]）
教育部霍英东教育基金会优选资助课题(114021). （114021）
