中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2019, Vol. 38 ›› Issue (08): 27-32.DOI: 10.3969/j.issn.1674-0696.2019.08.05

• Bridge & Tunnel Engineering • Previous Articles     Next Articles

Galloping of Quad Bundle Conductor Line under the Influence of Critical Parameters

YANG Xiaohui1, LIU Xiaohui2, XU Qian3,4, WU Chuan1, ZHOU Linshu5, CAI Mengqi4   

  1. ((1. Henan Electric Power Research Institute of State Grid, Zhengzhou 450000, Henan, P. R. China; 2. School of Civil Engineering & Architecture, Chongqing Jiaotong University, Chongqing 400074, P. R. China; 3. School of Civil Architecture and Environment, Xihua University, Chengdu 610039, Sichuan, P. R. China; 4. School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, Sichuan, P. R. China; 5.Sichuan Electric Power Test & Research Institute, Chengdu 610016, Sichuan, P. R. China)
  • Received:2018-01-31 Revised:2018-10-10 Online:2019-08-01 Published:2019-08-01

关键参数影响下的四分裂导线驰振研究

杨晓辉1,刘小会2,徐倩3,4,伍川1,周林抒5,蔡萌琦4   

  1. (1. 国网河南电力科学研究院,河南 郑州 450000; 2. 重庆交通大学 土木建筑学院,重庆 400074; 3. 西华大学 土木建筑与环境学院,四川 成都 610039; 4. 成都大学 建筑与土木工程学院,四川 成都 610106; 5. 四川省电力工业调整试验所,四川 成都610016)
  • 作者简介:杨晓辉(1982—),女,河南郑州人,教授级高工,博士,主要从事输电线路舞动试验技术与输变电设备性能检测方面的研究。E-mail: yangxiaohui@ha.sgcc.com.cn。 通信作者:蔡萌琦(1987—),女,四川成都人,副研究员,博士,主要从事输电线路风致振动方面的研究。E-mail: mq.cai@cdu.edu.cn。
  • 基金资助:
    国家自然科学基金项目(51507106,51308570) ;国网河南省电力公司电力科学研究院项目(SGTYHT/15-JS-194);西华大学研究生创新基金项目(ycjj2017191)

Abstract: According to the wind tunnel test of quad bundle conductor section model, the variation curve of aerodynamic coefficients of sub-conductors changing with wind attack angle was obtained. The sensitivity of aerodynamic parameters of conductor line to wind speed was studied by changing wind speed. Meanwhile, the influence of the wake of the windward conductor on the aerodynamic parameters of the lower sub-conductor was also investigated, and the precision of wind tunnel test interval wind attack angle was verified. In ABAQUS finite element software, the finite element model of quad bundle conductor line was set up, and the aerodynamic load and the electromagnetic force between the sub-conductors were applied by UEL. According to the results of numerical simulation, the effect of span length and current intensity on the galloping amplitude, galloping trajectory and galloping mode of quad bundle conductor line was investigated. These results provide certain reference significance for the study of galloping mechanism of quad bundle conductor line and vibration prevention.

Key words: bridge engineering, quad bundle conductor line, galloping, electromagnetic forces, parameter analysis

摘要: 根据四分裂导线节段模型的风洞试验获得了子导线空气动力系数随风攻角的变化曲线,通过改变风速研究了导线气动参数对风速的敏感性,同时特别考察了迎风导线尾流对下风子导线气动参数的影响,并验证了风洞试验风攻角间隔的精度。在ABAQUS有限元软件中建立四分裂导线的有限元模型,通过UEL施加气动载荷及子导线之间的电磁力。根据数值模拟结果探讨了档距和电流强度对四分裂导线驰振幅值、驰振轨迹及驰振模式的影响。研究结果对四分裂导线驰振机理的研究及防振有一定的参考意义。

关键词: 桥梁工程, 四分裂导线, 驰振, 电磁力, 参数分析

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