| 输电线脱冰过程中耐张串金具的受力仿真分析 |
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| 引用本文： | 李春,刘小会,黄睿,叶中飞,伍川,张博. 输电线脱冰过程中耐张串金具的受力仿真分析[J]. 图学学报, 2021, 42(2): 279-288. DOI: 10.11996/JG.j.2095-302X.2021020279 |
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| 作者姓名： | 李春 刘小会 黄睿 叶中飞 伍川 张博 |
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| 作者单位： | 重庆交通大学土木工程学院,重庆 400074;重庆交通大学土木工程学院,重庆 400074;重庆交通大学省部共建山区桥梁及隧道工程国家重点实验室,重庆 400074;国网河南省电力公司电力科学研究院输电线路舞动防治技术重点实验室,河南 郑州 450052 |
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| 基金项目： | 国家自然科学基金项目(51308570);重庆市科委基础科学与前沿技术研究(cstc2017jcyjAX0246)。 |
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| 摘 要： | 针对脱冰过程中导线张力对输电线连接金具的破坏作用,运用ABAQUS软件分别建立特高压输电线路的导线模型和耐张串连接金具的整体模型.然后基于改变密度法模拟均匀覆冰的六分裂导线和覆冰脱落过程,研究不同步脱冰时各子导线的动态张力和导线束扭转角的变化规律,结果表明未脱冰子导线的动态最大张力大于导线覆冰静态张力,导线动张力与导线...
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| 关 键 词： | ABAQUS 六分裂导线 不同步脱冰 耐张串金具 应力 |
Simulation analysis of stress in power fitting for strain insulator-string following ice shedding from cables |
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| LI Chun,LIU Xiao-hui,HUANG Rui,YE Zhong-fei,WU Chuan,ZHANG Bo. Simulation analysis of stress in power fitting for strain insulator-string following ice shedding from cables[J]. Journal of Graphics, 2021, 42(2): 279-288. DOI: 10.11996/JG.j.2095-302X.2021020279 |
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| Authors: | LI Chun LIU Xiao-hui HUANG Rui YE Zhong-fei WU Chuan ZHANG Bo |
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| Affiliation: | 1. College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China;2. State Key Laboratory of Bridge and Tunnel Engineering in Mountain Areas, Chongqing Jiaotong University, Chongqing 400074, China;3. Key Laboratory of Power Transmission Line Galloping Prevention and Control Technology,State Grid Henan Electric Power Research Institute, Zhengzhou Henan 450052, China |
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| Abstract: | In order to address the damaging impact on the electric power fittings of the tension change of conductors due to ice shedding from cables,the wire model of UHV transmission line and the integral model of strain insulator-string were established respectively using the ABAQUS software.Based on the method of changing density,the ice shedding from six-bundle conductors with uniform ice-coating was simulated.Under non-synchronous ice shedding conditions,research was undertaken into the dynamic tension of sub-conductors and the torsion angle of the six-bundle conductor.The results show that the maximum dynamic tension of sub-conductors without ice shedding is larger than that of the static tension of iced conductors,and that the dynamic tension of the conductor is negatively correlated with the torsion angle of the conductor bundle.Finally,the finite element analysis was conducted based on the effect of static tension of iced conductor,and the maximum dynamic tension,the minimum dynamic tension,and the steady tension of conductors caused by iced shedding on the stress of strain insulator-string.The result reveals that the changing relationship between the stress of each electric power fitting of strain insulator-string and the tension of sub-conductors is inconsistent.The failure of the electric power fittings with greater stress and the sudden shape change were analyzed separately.The research results can inform the design and optimization of electric power fittings. |
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| Keywords: | ABAQUS six bundled conductors non-synchronous ice shedding strain insulator-string stress |
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