1000kV汉江大跨越特高压输电塔线体系气动弹性模型的设计与风洞试验
|
摘要
以建设中的1000kV汉江大跨越输电线路工程为背景,针对大跨越输电线路塔线体系风致响应较大的特点,进行了气弹模型风洞试验,分析了单塔及塔线体系在均匀流及紊流下的风振响应。塔线体系为四塔三线模型,并采用刚性节段加V型弹簧片法设计输电塔气动弹性模型。通过对实验结果进行分析,获得了塔线体系动力特性和风振响应等数据,研究了导线对输电塔的影响。结果表明,风荷载作用下导线与输电塔的耦合振动不可忽略。
Taking the 1000kV Hanjiang long span transmission project being constructed as research background, according to the feather that the wind-induced response of long span transmission line system is evident, the wind tunnel tests for aeroelastic model are performed, and the wind-induced responses of single tower and tower-transmission line system under uniform flow and turbulent flow are analyzed. The model of tower-transmission line system consists of four towers and three spans of transmission lines, and the aeroelastic model of the tower is designed by use of rigid subsections with "V" shaped spring added. Through the analysis on experimental results, the data of dynamic characteristic and wind-induced response of the tower-transmission line system is obtained, and the impact of conductors on tower is researched. Research results show that under the wind load the coupled vibration of conductors and transmission tower should not be neglected.
Taking the 1000kV Hanjiang long span transmission project being constructed as research background, according to the feather that the wind-induced response of long span transmission line system is evident, the wind tunnel tests for aeroelastic model are performed, and the wind-induced responses of single tower and tower-transmission line system under uniform flow and turbulent flow are analyzed. The model of tower-transmission line system consists of four towers and three spans of transmission lines, and the aeroelastic model of the tower is designed by use of rigid subsections with "V" shaped spring added. Through the analysis on experimental results, the data of dynamic characteristic and wind-induced response of the tower-transmission line system is obtained, and the impact of conductors on tower is researched. Research results show that under the wind load the coupled vibration of conductors and transmission tower should not be neglected.
引文
[1]谢强,张勇,李杰.华东电网500kV任上5237线飑线风致倒塔事故调查分析[J].电网技术,2006,30(10):59-63.Xie Qiang,Zhang Yong,Li Jie.Investigation on tower collapses of500kV Renshang5237transmission line caused by downburst[J].Power System Technology,2006,30(10):59-63(in Chinese).
[2]程志军.架空输电线路静动力特性及风振研究[D].杭州:浙江大学,2006.
[3]Momomura Y,Marukawa H,Okamura T,et al.Full-scale measurements of wind-induced vibration of a transmission line system in a mountainous area[J].Journal of Wind Engineering and Industrial Aerodynamics,1997,72:241-252.
[4]Harikrishna P,Shanmugasundaram J,Gomathinayagam S,et al.Analytical and experimental studies on the gust response of a52m tall steel lattice tower under wind loading[J].Computers and Structures,1999,70:149-160.
[5]邓洪洲,朱松晔,陈晓明,等.大跨越输电塔线体系气弹模型风洞试验[J].同济大学学报,2003,31(2):132-137.Deng Hongzhou,Zhu Songye,Chen Xiaoming,et al.Wind tunnel investigation on model of long span transmission line system[J].Journal of Tongji University,2003,31(2):132-137(in Chinese).
[6]邓洪洲,朱松晔,苏速,等.大跨越输电塔线体系风振控制风洞试验[J].同济大学学报,2003,31(9):1019-1013.Deng Hongzhou,Zhu Songye,Su Su,et al.Wind tunnel investigation on wind-induced vibration control of long span transmission line systems[J].Journal of Tongji University,2003,31(9):1019-1013(in Chinese).
[7]邓洪洲,朱松晔,王肇民.大跨越输电塔线体系动力特性及风振响应[J].建筑结构,2004,34(7):25-28.Deng Hongzhou,Zhu Songye,Wang Zhaomin.Study on dynamic behaviour and wind induced vibration response of long span transmission line system[J].Building Structure,2004,34(7):25-28(in Chinese).
[8]Lou Wenjuan,Sun Bingnan,Tan Jinchun.Wind tunnel test and numerical computation on wind-induced vibration for tall lattice tower[J].Journal of Vibration Engineering,1996,9(3):318-322.
[9]王世村,孙炳楠,楼文娟,等.单杆输电塔气弹模型风洞试验研究和理论分析[J].浙江大学学报,2005,1:87-91.Wang Shicun,Sun Bingnan,Lou Wenjuan,et al.Wind tunnel test and theoretical analysis on aeroelastic model of single-rod transmission tower[J].Journal of Zhejiang University,2005,39(1):87-91(in Chinese).
[10]中国电力工程顾问集团公司.晋东南—南阳—荆门1000kV输电线路工程:1000kV线路杆塔荷载研究报告[R].北京中国电力工程顾问集团公司,2006.
[11]Larsen A.Aerodynamics of large bridges[M].Balkema:Rotteram,1992.
[12]Loredo-Souza A M,Davenport A G..A novel approach for wind tunnel modelling of transmission lines[J].Journal of Wind Engineering and Industrial Aerodynamics,2001,89:1017-1029.
[13]Irvine H M.Cable structures[M].Cambridge:The MIT Press,1981.
[14]郭勇.大跨越输电塔线体系的风振响应及振动控制研究[D].杭州:浙江大学,2006.
[15]YangJ N,Lei Ying,Pan Shuwen,et al.System identification of linear structures based on hilber-huang spectral analysis.Part I:normal modes[J].Earthquake Engineering and Structural Dynamics,2003,32:1443-1467.
[16]陈隽,徐幼麟,李杰,Hilbert-Huang变换在密频结构阻尼识别中的应用[J].地震工程与工程振动,2003,23(4):35-42.Chen Jun,Xu Youlin,Li Jie.Hilbert-Huang transform for damping ratio identification of structures with closely spaced modes of vibration[J].Earthquake Engineering and Engineering Vibration,2003,23(4):35-42(in Chinese).
[17]Ibrahim S R.Random decrement technique for modal identification of structures[J].Journal of Spacecraft and Rockets,1997,14(11):696-698.
[18]高至飞,于向东,钱春阳.随机减量法识别铁路桥模态参数的试验与研究[J].广东土木与建筑,2006,(10):38-40.Gao Zhifei,Yu Xiangdong,Qian Chunyang.Experiment and analysis of structural natural modal parameters of railway bridge by random decrement technique[J].Guangdong Architecture Civil Engineering,2006,(10):38-40(in Chinese).
[19]张景绘,唐照千.对随机减量技术的数学表示[J].应用力学学报,1984,1(2):21-32.Zhang Jinghui,Tang Zhaoqian.The Mathematical Expression for Random Decrement Technique[J].Chinese Journal of Applied Mechanics,1984,1(2):21-32(in Chinese).
[2]程志军.架空输电线路静动力特性及风振研究[D].杭州:浙江大学,2006.
[3]Momomura Y,Marukawa H,Okamura T,et al.Full-scale measurements of wind-induced vibration of a transmission line system in a mountainous area[J].Journal of Wind Engineering and Industrial Aerodynamics,1997,72:241-252.
[4]Harikrishna P,Shanmugasundaram J,Gomathinayagam S,et al.Analytical and experimental studies on the gust response of a52m tall steel lattice tower under wind loading[J].Computers and Structures,1999,70:149-160.
[5]邓洪洲,朱松晔,陈晓明,等.大跨越输电塔线体系气弹模型风洞试验[J].同济大学学报,2003,31(2):132-137.Deng Hongzhou,Zhu Songye,Chen Xiaoming,et al.Wind tunnel investigation on model of long span transmission line system[J].Journal of Tongji University,2003,31(2):132-137(in Chinese).
[6]邓洪洲,朱松晔,苏速,等.大跨越输电塔线体系风振控制风洞试验[J].同济大学学报,2003,31(9):1019-1013.Deng Hongzhou,Zhu Songye,Su Su,et al.Wind tunnel investigation on wind-induced vibration control of long span transmission line systems[J].Journal of Tongji University,2003,31(9):1019-1013(in Chinese).
[7]邓洪洲,朱松晔,王肇民.大跨越输电塔线体系动力特性及风振响应[J].建筑结构,2004,34(7):25-28.Deng Hongzhou,Zhu Songye,Wang Zhaomin.Study on dynamic behaviour and wind induced vibration response of long span transmission line system[J].Building Structure,2004,34(7):25-28(in Chinese).
[8]Lou Wenjuan,Sun Bingnan,Tan Jinchun.Wind tunnel test and numerical computation on wind-induced vibration for tall lattice tower[J].Journal of Vibration Engineering,1996,9(3):318-322.
[9]王世村,孙炳楠,楼文娟,等.单杆输电塔气弹模型风洞试验研究和理论分析[J].浙江大学学报,2005,1:87-91.Wang Shicun,Sun Bingnan,Lou Wenjuan,et al.Wind tunnel test and theoretical analysis on aeroelastic model of single-rod transmission tower[J].Journal of Zhejiang University,2005,39(1):87-91(in Chinese).
[10]中国电力工程顾问集团公司.晋东南—南阳—荆门1000kV输电线路工程:1000kV线路杆塔荷载研究报告[R].北京中国电力工程顾问集团公司,2006.
[11]Larsen A.Aerodynamics of large bridges[M].Balkema:Rotteram,1992.
[12]Loredo-Souza A M,Davenport A G..A novel approach for wind tunnel modelling of transmission lines[J].Journal of Wind Engineering and Industrial Aerodynamics,2001,89:1017-1029.
[13]Irvine H M.Cable structures[M].Cambridge:The MIT Press,1981.
[14]郭勇.大跨越输电塔线体系的风振响应及振动控制研究[D].杭州:浙江大学,2006.
[15]YangJ N,Lei Ying,Pan Shuwen,et al.System identification of linear structures based on hilber-huang spectral analysis.Part I:normal modes[J].Earthquake Engineering and Structural Dynamics,2003,32:1443-1467.
[16]陈隽,徐幼麟,李杰,Hilbert-Huang变换在密频结构阻尼识别中的应用[J].地震工程与工程振动,2003,23(4):35-42.Chen Jun,Xu Youlin,Li Jie.Hilbert-Huang transform for damping ratio identification of structures with closely spaced modes of vibration[J].Earthquake Engineering and Engineering Vibration,2003,23(4):35-42(in Chinese).
[17]Ibrahim S R.Random decrement technique for modal identification of structures[J].Journal of Spacecraft and Rockets,1997,14(11):696-698.
[18]高至飞,于向东,钱春阳.随机减量法识别铁路桥模态参数的试验与研究[J].广东土木与建筑,2006,(10):38-40.Gao Zhifei,Yu Xiangdong,Qian Chunyang.Experiment and analysis of structural natural modal parameters of railway bridge by random decrement technique[J].Guangdong Architecture Civil Engineering,2006,(10):38-40(in Chinese).
[19]张景绘,唐照千.对随机减量技术的数学表示[J].应用力学学报,1984,1(2):21-32.Zhang Jinghui,Tang Zhaoqian.The Mathematical Expression for Random Decrement Technique[J].Chinese Journal of Applied Mechanics,1984,1(2):21-32(in Chinese).
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心