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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:

期数:

2010年09期

页码:

209-212

栏目:

应用开发研究

出版日期:

1900-01-01

文章信息/Info

Title:

Study and Simulation of Spectrum Analysis Methods for Turbin＇s Vibration Signal

文章编号:

1673-629X（2010）09-0209-04

作者:

张峰 石现峰

西安工业大学电子信息工程学院

Author(s):

ZHANG Feng; SHI Xian-feng

Electronic and Information Engineering School of Xi＇an Technological University

关键词:

汽轮机; 振动; 谱估计; 周期图; 多窗

Keywords:

turbin;  vibration;  spectrum estimation;  periodogram;  multitaper

分类号:

TN911.7

文献标志码:

A

摘要:

汽轮机是广泛应用的旋转机械设备,对其故障进行诊断具有重要的实际意义。汽轮机振动信号的频谱分析是提取故障特征的有效方法。对振动信号谱分析中常用的算法进行了介绍,包括周期图法、改进的周期图法及多窗谱估计算法,并基于Matlab进行了仿真实现。在算法仿真基础上利用各算法对实测汽轮机振动信号进行了功率谱分析,并对分析效果及算法性能进行了对比。最后指明了经典谱估计算法的特点和在实际应用中的局限。研究及分析结论对汽轮机振动信号的频谱分析具有一定的指导意义

Abstract:

Turbins are a kind of widely used rotating machinery, so it is extremely significant to diagnose the running fault.The spectrum analysis of turbin＇s vibration signal is an efficient method for default extraction.The methods that are often used in vibration signal＇s spectrum estimation are introduced and analyzed,including periodogram method,modified periodogram method and multitaper method,and all the methods are programmed and simulated by using Matlab.Based on this,the spectrum analysis of field measured turbin＇s vibration signal is performed by the use of above-mentioned methods and the performances are compared.At the end of the paper,the characters and limitations of classic spectrum estimation methods in application are figured out.The conclusion that the paper provides can be useful in the spectrum analysis of turbin＇s vibration signal

备注/Memo

备注/Memo:

陕西省厂校合作计划项目（H200712229）张峰（1979-），男，河南南阳人，讲师，博士研究生，研究方向为信号与信息处理、自动控制、计算机应用

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更新日期/Last Update: 1900-01-01