水力发电学报2014，Vol.33Issue(3)：246-252,7.
基于Moran's I指标的水工结构传感器优化布置
Optimal sensor placement for hydraulic structures based on Moran's index I
摘要
Abstract
A spatial correlation-effective independence method,which uses Moran's index I to weigh the Fisher information matrix,is presented to solve information redundancy in application of the effective independence method to optimal sensor placement in hydraulic structures.This method can not merely judge the spatial correlation of mode shapes at candidate nodes,but obtain sensor placement schemes which maximize the contribution of each sensor to modal observability while taking the spatial correlation into account.It was applied to a guide wall and the obtained scheme was compared in detail with those by two existing methods.Results show that the new method can ensure reasonable spatial distribution and modal measurability and effectively avoid information redundancy in its application to optimal sensor placement in large hydraulic structures modeled with mesh refinement.Therefore,it is an ideal method for optimization of sensor placement.关键词
水工结构/传感器优化布置/空间相关-有效独立法/Moran's I/信息冗余Key words
hydraulic structure/ optimal sensor placement/ spatial correlation-effective independence method/ Moran's I/ information redundancy分类
数理科学引用本文复制引用
何龙军,练继建,马斌..基于Moran's I指标的水工结构传感器优化布置[J].水力发电学报,2014,33(3):246-252,7.基金项目
国家自然科学基金创新研究群体科学基金(51021004) （51021004）
高碾压混凝土坝工作性态识别及损伤诊断技术研究(2013CB035905-1) （2013CB035905-1）
天津市应用基础及前沿技术研究计划(12JCQNJC04600) （12JCQNJC04600）
