适用于梯级泵站压力管道的传感器优化布置方法

为解决梯级泵站压力管道传感器优化布置问题,提出一种基于有效独立-总位移法的传感器优化布置方法。该方法针对有效独立法所选测点能量较小的缺陷,将测点的总位移以权重的方式加入传感器优化过程中,并保留有效独立法的优点,最终得到独立性较好且满足能量要求的测点。以景泰压力管道为例,运用该方法进行传感器优化布置,并与传统有效独立法比较,通过模态置信准则、Fisher信息矩阵值、最大奇异值比以及总位移等指标评价2种方法的优劣。结果表明,有效独立-总位移法得到的测点在满足独立性的前提下,增加了测点信息量,可观性更好。优化前后实测数据的比较分析,表明该方案对实际结构检测具有较好的适用性,是一种实用有效的传感器优化...

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Bibliographic Details
Published in农业工程学报 Vol. 32; no. 4; pp. 113 - 118
Main Author 张建伟 暴振磊 刘晓亮 王涛 江琦 刘轩然
Format Journal Article
LanguageChinese
Published 华北水利水电大学水利学院,郑州,450011 2016
Subjects
优化
传感器
传感器优化布置
压力
压力管道
有效独立-总位移法
梯级泵站
结构健康监测
梯级泵站
cascade pumping station
structural health monitoring
有效独立-总位移法
pressure
pressure pipeline
传感器优化布置
sensors
optimization
优化
压力
sensor placement optimization
effective independence-total displacement method
传感器
压力管道
结构健康监测
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ISSN1002-6819
DOI10.11975/j.issn.1002-6819.2016.04.016

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Summary:为解决梯级泵站压力管道传感器优化布置问题,提出一种基于有效独立-总位移法的传感器优化布置方法。该方法针对有效独立法所选测点能量较小的缺陷,将测点的总位移以权重的方式加入传感器优化过程中,并保留有效独立法的优点,最终得到独立性较好且满足能量要求的测点。以景泰压力管道为例,运用该方法进行传感器优化布置,并与传统有效独立法比较,通过模态置信准则、Fisher信息矩阵值、最大奇异值比以及总位移等指标评价2种方法的优劣。结果表明,有效独立-总位移法得到的测点在满足独立性的前提下,增加了测点信息量,可观性更好。优化前后实测数据的比较分析,表明该方案对实际结构检测具有较好的适用性,是一种实用有效的传感器优化布置方法。
Bibliography:11-2047/S
sensors;optimization;pressure;cascade pumping station;pressure pipeline;structural health monitoring;sensor placement optimization;effective independence-total displacement method
As the basic carrier of long-distance inter-basin water conveyance project of cascade, cascade pumping station is an important part of agricultural engineering and water conservancy projects, which plays an important role on solving the uneven space-time distribution of water resources. Safety monitoring research of cascade pumping station pressure pipe structure is a focus of current structural health monitoring and dynamic recognition research. But in practical engineering, safety monitoring of pressure pipeline structure is mostly based on experience of the sensor measurement points for decorate, which has a great deal of subjectivity and blindness. In order to solve the problem of pressure pipeline sensor optimization of cascade pumping station, an improved effective independence sensor placement optimization method base
ISSN:1002-6819
DOI:10.11975/j.issn.1002-6819.2016.04.016