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考虑温度效应的覆冰导线动力学建模及舞动特征研究1)

闵光云, 刘小会, 蔡萌琦, 孙测世, 杨曙光, 张春霞

闵光云, 刘小会, 蔡萌琦, 孙测世, 杨曙光, 张春霞. 考虑温度效应的覆冰导线动力学建模及舞动特征研究1)[J]. 力学与实践, 2021, 43(1): 84-93. DOI: 10.6052/1000-0879-20-319
引用本文: 闵光云, 刘小会, 蔡萌琦, 孙测世, 杨曙光, 张春霞. 考虑温度效应的覆冰导线动力学建模及舞动特征研究1)[J]. 力学与实践, 2021, 43(1): 84-93. DOI: 10.6052/1000-0879-20-319
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MIN Guangyun, LIU Xiaohui, CAI Mengqi, SUN Ceshi, YANG Shuguang, ZHANG Chunxia. DYNAMIC MODELING AND GALLOPING CHARACTERISTICS OF ICED CONDUCTOR WITH CONSIDERATION OF TEMPERATURE EFFECT1)[J]. MECHANICS IN ENGINEERING, 2021, 43(1): 84-93. DOI: 10.6052/1000-0879-20-319
Citation: MIN Guangyun, LIU Xiaohui, CAI Mengqi, SUN Ceshi, YANG Shuguang, ZHANG Chunxia. DYNAMIC MODELING AND GALLOPING CHARACTERISTICS OF ICED CONDUCTOR WITH CONSIDERATION OF TEMPERATURE EFFECT1)[J]. MECHANICS IN ENGINEERING, 2021, 43(1): 84-93. DOI: 10.6052/1000-0879-20-319
shu
闵光云, 刘小会, 蔡萌琦, 孙测世, 杨曙光, 张春霞. 考虑温度效应的覆冰导线动力学建模及舞动特征研究1)[J]. 力学与实践, 2021, 43(1): 84-93. CSTR: 32047.14.1000-0879-20-319
引用本文: 闵光云, 刘小会, 蔡萌琦, 孙测世, 杨曙光, 张春霞. 考虑温度效应的覆冰导线动力学建模及舞动特征研究1)[J]. 力学与实践, 2021, 43(1): 84-93. CSTR: 32047.14.1000-0879-20-319
shu
MIN Guangyun, LIU Xiaohui, CAI Mengqi, SUN Ceshi, YANG Shuguang, ZHANG Chunxia. DYNAMIC MODELING AND GALLOPING CHARACTERISTICS OF ICED CONDUCTOR WITH CONSIDERATION OF TEMPERATURE EFFECT1)[J]. MECHANICS IN ENGINEERING, 2021, 43(1): 84-93. CSTR: 32047.14.1000-0879-20-319
Citation: MIN Guangyun, LIU Xiaohui, CAI Mengqi, SUN Ceshi, YANG Shuguang, ZHANG Chunxia. DYNAMIC MODELING AND GALLOPING CHARACTERISTICS OF ICED CONDUCTOR WITH CONSIDERATION OF TEMPERATURE EFFECT1)[J]. MECHANICS IN ENGINEERING, 2021, 43(1): 84-93. CSTR: 32047.14.1000-0879-20-319
shu

考虑温度效应的覆冰导线动力学建模及舞动特征研究1)

  • *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

  • **成都大学建筑与土木工程学院,成都610106

  • ††成都大学模式识别与智能信息处理四川省高校重点实验室,成都610106

基金项目: 1)国家自然科学基金(51308570, 51808085, 51507106),重庆市研究生科研创新项目(X202010618001, CYS19240),重庆市科委基础科学与前沿技术研究(cstc2017jcyjAX0246),重庆市教委科学技术研究项目(KJ201600712182)资助
详细信息
    通讯作者:

    2)刘小会,副教授,研究方向为输电线结构动力学分析。E-mail: cqdxlxh@126.com

  • 中图分类号: O322,TM753

DYNAMIC MODELING AND GALLOPING CHARACTERISTICS OF ICED CONDUCTOR WITH CONSIDERATION OF TEMPERATURE EFFECT1)

  • *School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China

  • †State Key Laboratory of Bridge and Tunnel Engineering in Mountain Areas, Chongqing Jiaotong University, Chongqing 400074, China

  • **School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China

  • ††Key Laboratory of Pattern Recognition and Intelligent Information Processing, Institutions of Higher Education of Sichuan Province, Chengdu University, Chengdu 610106, China

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    摘要
  • 摘要: 针对以往研究忽略了温度效应对覆冰导线舞动特性的影响,本文推导了考虑温度效应影响的覆冰导线舞动控制方程。基于悬链法、热应力理论推导了覆冰导线的偏微分舞动方程,接着通过Galerkin法将该偏微分方程转化为常微分方程。建立气动载荷模型,将气动力引入到舞动方程中,随后采用多尺度求得了覆冰导线的位移响应,最后进行了参数分析、算例分析。结果表明：温度对覆冰导线面内、面外的频率影响显著,且对覆冰导线舞动的幅值也有一定的影响。可见针对覆冰导线舞动特征的影响研究,有必要考虑温度效应的影响,本文的研究成果有利于理论建模的完善,也能给予实际工程一定的参考。
    Abstract: The influence of the temperature on the galloping characteristics of iced conductor was often neglected in related studies. In this paper, the galloping governing equation with consideration of the temperature effect is derived. Based on the catenary method and the thermal stress theory, the partial differential galloping equation of iced conductor is derived, then the partial differential equation is transformed into the ordinary differential equation by Galerkin method. The aerodynamic load model is established and the aerodynamic loads are introduced into the galloping equation. Then the displacement response of the iced conductor is obtained by the multiple scale method. Finally, a parameter analysis and a numerical example analysis are carried out. The results show that the temperature has a significant effect on the in-plane and out-of-plane frequencies of the iced conductor, and also has a certain influence on the galloping amplitude of the iced conductor. It can be seen that the influence of the temperature on the galloping characteristics of the iced conductors must be considered when studying the galloping characteristics of the iced conductor.
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    • 参考文献(19)
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出版历程
  • 收稿日期:  2020-08-04
  • 修回日期:  2020-08-25
  • 发布日期:  2021-02-07

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