连续档覆冰八分裂导线舞动特征数值模拟研究  

Numerical Simulation of Galloping Characteristics of Continuous Iced Eight-bundle Conductors

作　　者：丁顺利 蔡萌琦 黄汉杰[3] 田博文 梁俊豪 周林抒 DING Shunli;CAI Mengqi;HUANG Hanjie;TIAN Bowen;LIANG Junhao;ZHOU Linshu(School of Mechanical Engineering,Chengdu University,Chengdu 610106,China;School of Architecture and Civil Engineering,Chengdu University,Chengdu 610106,China;Low Speed Station,China Aerodynamics Research and Development Center,Mianyang 621000,Sichuan,China;State Grid Sichuan Integrated Energy Service Co.,Ltd.,Chengdu 610072,China)

机构地区：[1]成都大学机械工程学院,成都610106 [2]成都大学建筑与土木工程学院,成都610106 [3]中国空气动力研究与发展中心低速所,四川绵阳621000 [4]国网四川综合能源服务有限公司,成都610072

出　　处：《噪声与振动控制》2023年第2期35-42,共8页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(51507106);成都市国际科技合作资助项目(2020-GH02-00059-HZ);模式识别与智能信息处理四川省高校重点实验室开放基金资助项目(MSSB-2020-05)。

摘　　要：利用非线性有限元方法建立多档覆冰八分裂导线的数值模型,模拟研究线路在不同参数下的舞动。基于导线动力特性和舞动特征,分析连续档线路在不同风速、档距、档数下的舞动模式、频率特性、振动幅值和轨迹,并与孤立档线路的舞动特性进行比较。结果表明,连续档线路各档的舞动特征有明显差异,且连续档线路与孤立档线路之间也存在较大差别,故在研究导线舞动防治技术时应把这些差异考虑在内。Numerical model of multi-span iced eight-bundle conductors is established by means of the nonlinear finite element method in order to simulate their galloping.Based on the dynamic characteristics and galloping behaviors of the eight-bundle conductors,the galloping modes,frequency characteristics,galloping amplitudes and traces of the multi-span lines under different wind velocities,span length and span numbers are analyzed.The results are compared with those of single-span lines.The results show that there are significant differences in galloping characteristics between multi-span transmission lines and single-span lines,thus these differences should be considered in the study of galloping prevention and control technology.

关 键 词：振动与波 覆冰八分裂导线 连续档线路 舞动特性 数值模拟 

分 类 号：Q323[生物学—遗传学]