基于LabVIEW的多通道高铁桥梁振动测试系统的搭建

英文篇名：Set Up of Multi-channel System for Vibration Measurement and Analysis of Bridge along High-speed Railway Based on LabVIEW
中文刊名：仪表技术与传感器
英文刊名：Instrument Technique and Sensor
作者：屈威 ; 钟红 ; 林皋
英文作者：QU Wei ; ZHONG Hong ; LIN Gao(Earthquake Engineering Research Institute ; Dalian University of Technology ; Dalian 116024 ; China)
中文关键词：高铁桥梁 ; 振动测试 ; LabVIEW ; 信号采集 ; 数据处理
英文关键词：bridge along high-speed railway ; vibration measurement ; LabVIEW ; signal acquisition ; signal analysis
出版日期：2012-08-15
机构：大连理工大学工程抗震研究所;
年：2012
期：08
出版单位：仪表技术与传感器

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.

引文

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