基于LabVIEW的多通道高铁桥梁振动测试系统的搭建  

Set Up of Multi-channel System for Vibration Measurement and Analysis of Bridge along High-speed Railway Based on LabVIEW

作　　者：屈威[1] 钟红[1] 林皋[1] 

机构地区：[1]大连理工大学工程抗震研究所,辽宁大连116024

出　　处：《仪表技术与传感器》2012年第8期15-18,共4页Instrument Technique and Sensor

基　　金：十一五国家科技支撑计划项目(2009BAG12A01-K01-3);中德国际合作基金项目(GZ566);高等学校博士点基金项目(200801411099)

摘　　要：为研究高速铁路沿线桥梁在高速列车激励下的振动规律,以及桥梁系统对地震响应的放大效应,基于Lab-VIEW2010开发了一套集信号采集、文件管理、信号时域分析、频域分析和模态分析为一体的高速铁路桥梁振动测试系统。介绍了系统软、硬件的各种功能和开发过程,特别是在功率谱编程中引入了Bartlett改进方法。经实验验证,该系统具有较高的精度,并能很好地实现各设计功能。A multi-channel system including signal acquisition,file management,time-domain analysis,frequency-domain analysis and spectral analysis was developed for researching the vibration rule and the amplification effect of the bridge along high-speed railway based on LabVIEW2010.The functions and the development process of software and hardware of the system were described,and improved-Bartlett method was introduced to power spectrum programming.The results of test show that the proposed system can achieve different design functions with high accuracy.

关 键 词：高铁桥梁 振动测试 LABVIEW 信号采集 数据处理 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]