| 一种新的长输管道泄漏点定位方法 |
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| 引用本文： | 李俊花,刘文白,崔莉,孙昭晨.一种新的长输管道泄漏点定位方法[J].力学学报,2010,42(1):127-131. |
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| 作者姓名： | 李俊花 刘文白 崔莉 孙昭晨 |
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| 作者单位： | 上海市申港大道1550号上海海事大学海洋环境与工程学院312#信箱上海海事大学 交通运输学院大连理工大学海岸及近海工程国家重点实验室大连理工大学海岸及近海工程国家重点实验室 |
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| 基金项目： | 上海市教委支出预算项目(2008071);;上海市教育委员会科研项目(07ZZ99);;重点学科建设项目(2009445878)资助~~ |
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| 摘 要： | 将压力梯度法与逆瞬态法结合，提出了适合长输管道的泄漏点定位方法. 该方法将泄漏点前后的摩阻系数以及泄漏流量系数看作优化控制变量、水击方程的数值计算结果与测量值之差的绝对值作为控制目标，利用遗传算法优选泄漏点前后的摩阻系数，与压力梯度法结合不断迭代求解泄漏点的位置. 通过输水管道的泄漏实验得到该方法漏点定位的平均误差为4%左右.
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| 关 键 词： | 泄漏点定位 摩阻系数 压力梯度 逆瞬态分析 GA算法 |
| 收稿时间： | 2008-04-09 |
A NEW METHOD FOR LOCATION LEAK IN LONG-DISTANCE PIPELINE |
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| Li Junhua
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Liu Wenbai
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Cui Li
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Sun Zhaochen.A NEW METHOD FOR LOCATION LEAK IN LONG-DISTANCE PIPELINE[J].chinese journal of theoretical and applied mechanics,2010,42(1):127-131. |
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| Authors: | Li Junhua Liu Wenbai Cui Li Sun Zhaochen |
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| Institution: | The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024,China |
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| Abstract: | For the long-distance pipeline based mainly on frictional head loss,it is necessary to locate the leak point after the leak appears.The researchers have developed many methods for position leak during the past of a few years,such as pressure gradient method,inverse transient method,etc.These methods have their respective advantages and disadvantages for long-distance pipeline.The pressure gradient method is suitable to the pipeline of hydraulic grade line varied linearly.The leak location in the inverse tra... |
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| Keywords: | location of the leakage point friction factor pressure gradient inverse transient analysis GA algorithm |
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