基于有效独立法的传感器优化布置  

An Optimal Sensor Placement Methods Based on the Effective Independence Method

作　　者：何云[1] 余文柏[1] 

机构地区：[1]中煤国际工程集团重庆设计研究院,重庆400016

出　　处：《工程建设与设计》2011年第8期134-136,共3页Construction & Design for Engineering

摘　　要：为了研究桥梁结构健康监测中的传感器优化布置问题,对基于Fisher信息矩阵的有效独立法进行研究。首先对有效独立法进行理论推导。然后以一钢桁架结构为算例,使用有效独立法进行传感器布置,并用模态保证准则对传感器布置效果进行评价。最后结果表明:有效独立法布置传感器尽可能多的保留了结构信息,能够良好的反映出结构特性。In order to solve the problem about optimal placement of sensors in bridge structure health monitoring,the effective independence method based on the Fisher information matrix had been studied in this paper.First,the optimal approaches have been deduced in theory.Then,with the background of a steel truss,the optimal approaches were used for sensor placement and their effects were evaluated according to the modal assurance criteria.Last,the results show that the effective independence method can retain much information about structure and it can reflect structural character better.

关 键 词：传感器优化布设 有效独立法 模态保证准则 桁架 Fisher信息矩阵 

分 类 号：U446[建筑科学—桥梁与隧道工程] TU31[交通运输工程—道路与铁道工程]