基于两步有效配置法的传感器优化布置  

Optimal Sensor Placement Base on Effective Two-Step Arrangement Approaches

作　　者：吴丹[1] 吴子燕[1] 杨海峰[1] 覃小文[1] 

机构地区：[1]西北工业大学力学与土木建筑学院,陕西西安710072

出　　处：《西华大学学报（自然科学版）》2008年第2期48-51,共4页Journal of Xihua University:Natural Science Edition

基　　金：国家863计划资助项目(No.2006AA04Z437)

摘　　要：近年来,世界各国都在积极开展对结构进行健康监测的研究,提出了许多种传感器优化配置方法,但在传感器数量优化上考虑得比较少。为解决传感器数量优化的问题,本文提出一种同时考虑数量和位置优化的传感器布置算法——基于两步有效配置法的传感器优化布置方法。该法首先通过弹性波传播原理确定特定结构的传感器布置极限间距并初步确定检测所需传感器数量,然后采用有效独立-驱动点残差法并将传感器布置极限间距作为该法的一个约束条件对传感器进行优化布置。针对特定检测系统,以桥梁结构Benchmark模型为例,验证了上述传感器两步优化配置法的有效性。计算表明,该法能有效地解决传感器优化配置问题。This paper proposes an Effective Two-Step Arrangement method for sensors optimization. The number and the location of sensor optimization are realized by the following two steps. First, calculate the utmost distance of sensors on a special structure by the principle of elastic wave propagation and determine the preliminary number of sensors; second, optimized sensors placement is ultimately determined by Effective Independence Driving-Point Residue (EFI-DPR) method which use utmost distance above as a constrained condition. In the bridge benchmark model case study, it shows the validity of two-step sensors optimization arrangement under some one special detection system.

关 键 词：传感器布置极限间距 有效独立-驱动点残差法 检测系统 桥梁结构Benchmark模型 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]