| 基于蒙特卡洛模拟法的输电塔架结构可靠度分析 |
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| 引用本文： | 牛群凯,朱瑞,朱全军,任建兴,王苏民,吴世伟,陈达多. 基于蒙特卡洛模拟法的输电塔架结构可靠度分析[J]. 上海电力学院学报, 2018, 34(3): 291-296 |
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| 作者姓名： | 牛群凯 朱瑞 朱全军 任建兴 王苏民 吴世伟 陈达多 |
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| 作者单位： | 上海电力学院;全球能源互联网研究院 |
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| 基金项目： | 国家自然科学基金（11502140）；国家电网科技项目（SGRIWD7115010）。 |
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| 摘 要： | 为进一步研究输电塔架结构可靠性问题,以可靠度基本理论为理论基础,利用MATLAB软件中多项式稳健拟合工具对考虑风荷载和覆冰荷载下的功能函数进行拟合,得到了塔架结构失效的功能函数。拟合结果表明,塔架的最大位移随着风速和覆冰厚度的增大而增大,且风速较覆冰厚度在塔架可靠度分析中具有更高的敏感性。然后,基于蒙特卡洛模拟法计算不同工况下输电塔架结构的可靠度。最后,分析了变量相关性,发现随着相关系数的增大,可靠指标减小,且两者呈线性关系。
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| 关 键 词： | 输电塔架 可靠度分析 蒙特卡洛模拟法 相关性分析 |
| 收稿时间： | 2018-02-26 |
Reliability Analysis of Transmission Tower Structure Based on Monte Carlo Method |
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| NIU Qunkai,ZHU Rui,ZHU Quanjun,REN Jianxing,WANG Sumin,WU Shiwei and CHEN Daduo. Reliability Analysis of Transmission Tower Structure Based on Monte Carlo Method[J]. Journal of Shanghai University of Electric Power, 2018, 34(3): 291-296 |
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| Authors: | NIU Qunkai ZHU Rui ZHU Quanjun REN Jianxing WANG Sumin WU Shiwei CHEN Daduo |
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| Affiliation: | Shanghai University of Electric Power, Shanghai 200090, China,Shanghai University of Electric Power, Shanghai 200090, China,Global Energy Interconnection Research Institude, Beijing 102211, China,Shanghai University of Electric Power, Shanghai 200090, China,Shanghai University of Electric Power, Shanghai 200090, China,Shanghai University of Electric Power, Shanghai 200090, China and Shanghai University of Electric Power, Shanghai 200090, China |
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| Abstract: | The article is based on the basic theory of reliability,using software MATLAB robust fitting polynomial tools to fit the functions considering under wind load and ice load function fitting.The failure features of tower structure functions are obtained,and the fitting results are good.The maximum displacement of tower increases with the wind speed and the thickness of ice,and the wind speed in the reliability analysis of tower has a higher sensitivity.Then the reliability of transmission tower structure is calculated based on Monte Carlo simulation method.Finally,the correlation of variables is analyzed,and it is found that the reliability index decreases with the increase of correlation coefficient,and the approximate linear relationship is presented. |
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| Keywords: | transmission tower reliability analysis Monte Carlo method correlation analysis |
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