全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

导线舞动时输电铁塔承载性能及破坏模式分析

, PP. 135-141

Keywords: 杆塔,舞动,驻波,荷载,破坏模式

Full-Text   Cite this paper   Add to My Lib

Abstract:

为确定舞动荷载作用下杆塔受力及破坏模式,分别建立了500kV舞动事故线路段连续7档导线—绝缘子模型和塔线体系模型,采用驻波法作为导线舞动激励,计算了不同工况下的导线张力、挂点不平衡张力和垂直荷载。当耐张塔两侧导线不发生一阶舞动时,导线舞动幅值相对较小,产生的纵向不平衡张力小于设计规范规定的断线张力,耐张塔不会发生破坏。发生一阶舞动时,不平衡张力超过断线张力取值,舞动相横担下截面斜材首先会出现应力超限情况,从而导致横担发生破坏,分析确定的铁塔破坏模式与现场破环形式一致。塔线模型与导线—绝缘子模型计算得到的导线张力和不平衡张力峰值较为接近。双挂点塔线模型计算得到的横担主材轴力与单塔模型基本一致,斜材轴力相差约0.2%、8%和2%。

References

[1]  王丽新,杨文兵,杨新华,等.输电线路舞动的有限元分析[J].华中科技大学学报:城市科学版,2004,21(1):76-80.Wang Lixin,Yang Wenbing,Yang Xinhua,et al.Finite element analysis for galloping process of transmission lines[J].Journal of Huazhong University of Science and Technology:Urban Science Edition,2004,21(1):76-80(in Chinese).
[2]  杨新华,王丽新,王乘,等.考虑多种因素的导线舞动三维有限元分析[J].动力学与控制学报,2004,2(4):84-89.Yang Xinhua,Wang Lixin,Wang Cheng,et al.3D finite element analysis of transmission line galloping involving multi factors[J].Journal of Dynamics and Control,2004,2(4):84-89(in Chinese).
[3]  郝淑英,周坤涛,刘君,等.考虑多种因素的覆冰输电线路的有限元分析[J].天津理工大学学报,2010,26(6):7-11.Hao Shuying,Zhou Kuntao,Liu Jun,et al.Finite element analysis of iced conductor galloping involving multi- factors[J].Journal of Tianjin University of Technology,2010,26(6):7-11(in Chinese).
[4]  刘小会,严波,张宏雁,等.分裂导线舞动有限元分析[J].振动与冲击,2010,29(6):129-133.Liu Xiaohui,Yan Bo,Zhang Hongyan,et al.Study on the ice shedding and vibration suppression of transmission line[J].Journal of Vibration and Shock,2010,29(6):129-133(in Chinese).
[5]  Yang Fengli,Yang Jingbo,Han Junke,et al.Numerical simulation on the HV transmission tower-line system under ice shedding[C]//EE Transmission and Distribution Conference in Asia 2009.Seoul,Korea:IEEE,2009:1-5.
[6]  杨风利,杨靖波,付东杰,等.塔线系统脱冰跳跃动力响应分析[J].振动工程学报,2010,23(1):86-93.Yang Fengli,Yang Jingbo,Fu Dongjie,et al.Analysis on dynamic responses of transmission tower-line system under ice shedding[J].Journal of Vibration Engineering,2010,23(1):86-93(in Chinese).
[7]  杨风利,杨靖波,李正,等.覆冰输电线路脱冰跳跃及抑制方法研究[J].振动与冲击,2010,29(5):20-25.Yang Fengli,Yang Jingbo,Li Zheng,et al.Study on the ice shedding and vibration suppression of transmission line[J].Journal of Vibration and Shock,2010,29(5):20-25(in Chinese).
[8]  Yang Fengli,Yang Jingbo,Han Junke,et al.Analysis on dynamic responses of transmission tower line system under ice shedding[J].International Journal of Structural Stability and Dynamics,2010,10(3):461-481.
[9]  能源部电力建设研究所.导线舞动译文集:机制部分[R].北京:能源部电力建设研究所,1988.Translation proceedings of conductor galloping:mechanism part[R].Beijing:Electric Power Construction Research Institute,1988(in Chinese).
[10]  Hartog D.Transmission line vibration due to sleet [J].AIEE Transmission(Part 4),1932:1074-1086.
[11]  Nigol O,Buchan P G.Conductor galloping-part II torsional mechanism[J].IEEE Transactions on Power Apparatus and systems,1981,100(2):708-720.
[12]  Yu P,Desai Y,SHAH A H,et al.Three-degree-of-freedom model for galloping.part I:frmulation[J].Journal of Engineering Mechanics,1993,119(20):2404-2425.
[13]  樊社新,何国金,廖小平,等.结冰导线舞动机制分析[J].中国电机工程学报,2006,26(14):131-133.Fan Shexin,He Guojin,Liao Xiaoping,et al.Analysis of galloping mechanism of iced conductor[J].Proceedings of the CSEE,2006,26(14):131-133(in Chinese).
[14]  朱宽军,刘彬,刘超群,等.特高压输电线路防舞动研究[J].中国电机工程学报,2008,28(34):12-20.Zhu Kuanjun,Liu Bin,Liu Chaoqun,et al.Research on anti-galloping for UHV transmission line[J].Proceedings of the CSEE,2008,28(34):12-20(in Chinese).
[15]  杨风利,杨靖波,付东杰,等.输电线路导线舞动荷载分析[J].中国电机工程学报,2010,31(6):102-107.Yang Fengli,Yang Jingbo,Fu Dongjie,et al.Analysis on the loads from galloping conductors of transmission lines[J].Proceedings of the CSEE,2010,31(6):102-107(in Chinese).
[16]  Baenzier M A,James W D,Wouters B,et al.Dynamic loads on transmission line structures due to galloping conductors[J].IEEE Transactions on Power Delivery,1994,9(1):40-49.
[17]  朱宽军,刘超群,任西春.架空输电线路舞动时导线动态张力分析[J].中国电力,2005,38(10):40-44.Zhu Kuanjun,Liu Chaoqun,Ren Xichun.Analysis on dynamic tension of conductor under transmission line galloping[J].Electric Power,2005,38(10):40-44(in Chinese).
[18]  周坤涛,郝淑英,刘君,等.覆冰输电线路结构及荷载对舞动的影响[J].振动与冲击,2012,31(1):116-120.Zhou Kuntao,Hao Shuying,Liu Jun,et al.Influence of conductor structure and loads on galloping of a transmission line[J].Journal of Vibration and Shock,2012,31(1):116-120(in Chinese).
[19]  曹化锦,李黎,姜维,等.输电塔-线体系舞动仿真及控制研究[J].振动与冲击,2011,30(12):245-249.Cao Huajin,Li Li,Jiang Wei,et al.Simulation and control for galloping of a transmission tower-line system [J].Journal of Vibration and Shock,2011,30(12):245-249(in Chinese).
[20]  王少华.输电线路覆冰导线舞动及其对塔线体系力学特性影响的研究[D].重庆:重庆大学,2008.Wang Shaohua.Study on iced conductor galloping and influence on dynamic properties of transmission tower-line system[D].Chongqing:Chongqing University,2008(in Chinese).
[21]  Desai Y M,Yu P,Popplewell N,et al.Finite element modelling of transmission line galloping[J].Computers & Structures,1995,57(3):407-420.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133