基于MATLAB的某产品振动信号处理  

Vibration signal processing of a product based on MATLAB

作　　者：姬玉芳[1] 孙运强[2] 姚爱琴[1] 

机构地区：[1]中北大学信息与通信工程学院,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《电子测试》2010年第5期89-92,共4页Electronic Test

摘　　要：本项研究主要解决的问题是要利用MATLAB对已测试得到的某结构体振动测试数据进行振动信号处理,通过振动测试数据的处理与分析,并结合机械体振动理论,最终提取出有效的振动信息。在对时域和频域信号进行5次平滑处理的前提下,用MATLAB软件实现了时域和频域内的波形变换,分析结果表明时域表示较为形象和直观,频域表示信号则更为简练,剖析问题更加深刻和方便。该软件具有简单易用,可信度高,灵活性好的优点,它加快了我们的研究进程。The study is mainly make vibration signal processing to the vibration test data of one structure by MATLAB. With the mechanical body vibration theory,an effective vibration information was finally extracted by analyzing the vibration test data.On the premise of five smoothing operation to time and frequency domain signal,the time and frequency domain waveforms transform is achieved by MATLAB.The results show that the time domain representation of the signal is more image and visual,and the frequency domain representation is more concise and profound in the analysis.The software has some advantages,such as easy to use,high reliability,good flexibility,and it speeds up the research process.

关 键 词：振动信号处理 MATLAB 时域 频域 

分 类 号：O329[理学—一般力学与力学基础]