基于迭代递推的供水管道多泄漏点声定位方法

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振动与冲击 ›› 2020, Vol. 39 ›› Issue (14) : 1-8.

论文

焦敬品，任玉宝，吴斌，何存富

作者信息 +

Acoustic diagnosis method for multiple leakages location in a water transmission pipeline based on iterative recursion

JIAO Jingpin，REN Yubao，WU Bin，HE Cunfu

Author information +

文章历史 +

摘要

针对多泄漏点产生的声发射信号及环境噪声对供水管道泄漏定位的影响，进行供水管道多泄漏点声定位方法研究。发展了一种基于迭代递推的供水管道多泄漏点声定位方法，研究迭代递推中品质因数阈值、信噪比阈值、相位偏移量的寻优区间和泄漏相关时频点的判定阈值等参数选择对泄漏定位效果的影响，并优选出适合的参数值。在此基础上，进行供水管道多漏点检测实验。结果表明，该方法可以实现管道上多个泄漏检测和定位，且定位误差小于1m。研究工作为实际供水管道多泄漏点检测及定位提供了可行的解决方案。

Abstract

In view of the leakage location inaccurate problem caused by interaction of leakage noise between each leakage point, research was conducted to realize the location of multiple leakage points of pipeline. A multi - leakage point location method based on iterative recursion was developed. The influence of the threshold signal to noise ratio and iteration termination condition on the performance of the algorithm was studied, and the best input parameters were optimized. Experiments proved that method can be used to estimate the number and position of leakage points in pipeline, its error was less than 1m.This work had provided a feasible solution for the detection and location of multiple leakage points in practical engineering pipelines.

导出引用

焦敬品，任玉宝，吴斌，何存富. 基于迭代递推的供水管道多泄漏点声定位方法[J]. 振动与冲击, 2020, 39(14): 1-8

JIAO Jingpin，REN Yubao，WU Bin，HE Cunfu. Acoustic diagnosis method for multiple leakages location in a water transmission pipeline based on iterative recursion[J]. Journal of Vibration and Shock, 2020, 39(14): 1-8

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