基于虚拟仪器技术结构固有特性的实验测量  

Experimental Measurement of Structural Inherent Characteristics Based on Virtual Instrument Technology

作　　者：伍良生[1] 陈长浩[1] 侯涛[1] 张震[1] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100124

出　　处：《北京工业大学学报》2012年第1期7-11,共5页Journal of Beijing University of Technology

基　　金：国家科技重大专项资助项目(2009ZX04014-036)

摘　　要：以机械振动和模态分析理论为基础,并以LabVIEW为开发平台,研发了一套测试系统,可通过扫频方式快速准确地测量多自由度系统的各阶固有频率和振型动态特性.实验证明,本系统可获得准确可靠的数据,具有较高的实用价值.Based on mechanical vibration and modal analysis theory,and LabVIEW software as a development platform,this paper develops a dynamic characteristic test system,which quickly and accurately measures a multi-DOF system＇s first-order natural frequency and formation through sweep frequency.Experiments show that the system can obtain accurate and reliable data,and has a highly practical value.

关 键 词：扫频激振 功率谱分析 固有频率 振型 阻尼比 

分 类 号：TH164[机械工程—机械制造及自动化]