基于虚拟仪器技术的结构健康监测系统开发  

Development of Structural Health Monitoring System Based on Virtual Instrument Technology

作　　者：高东伟[1,2] 李宏男[1] 任亮[1] 伊廷华[1] 

机构地区：[1]大连理工大学海岸与近海工程国家重点实验室,大连116023 [2]浙江省建筑设计研究院,杭州310006

出　　处：《系统仿真学报》2009年第10期2889-2894,共6页Journal of System Simulation

基　　金：国家“十一五”科技支撑计划(2006BAJ03B05);教育部创新团队(IRT0518);国家自然科学基金(50708013);高等学校学科创新引智计划资助项目(B08014);教育部高等学校博士学科点专项科研基金(20070141036);沈阳建筑大学结构工程省级重点实验室开放基金(JG200718)

摘　　要：基于虚拟仪器技术建立了一套结构健康监测系统,介绍了各子系统的功能、特点和实现方法。建立了基于LabVIEW平台的数据采集系统,实现了光纤光栅传感器与传统电力式传感器的同时测量,通过LabVIEW和MATLAB混合编程实现了小波消噪和结构的损伤诊断,研究了LabVIEW与SQL Server 2000相结合的数据库开发技术。以一个二层的钢框架结构为例对系统进行了测试,结果表明系统运行稳定,损伤识别准确有效。A structure health monitoring system based on virtual instrument technology was developed. All the subsystems were analyzed in their functions, characteristics and implementations. A data acquisition system based on the platform of LabVIEW was developed to acquire the signals of optic fiber Bragg grating sensors and traditional electrical sensors synchronously. Through mixed programming of LabVIEW and MATLAB, the powerful wavelet toolbox of MATLAB was used for noise reduction and damage diagnosis. The database development technique based on LabVIEW and SQL Server 2000 was introduced. The stabilization of the system and the effectiveness of the damage diagnosis method were confirmed on a two-story steel frame.

关 键 词：土木工程结构 健康监测系统 损伤诊断 虚拟仪器 LabVIEW 

分 类 号：TP315.95[自动化与计算机技术—计算机软件与理论]