基于相位差校正法的全息谱研究

汤宝平;陈建波;章国稳

振动与冲击 ›› 2009, Vol. 28 ›› Issue (8) : 99-102.

PDF(2097 KB)
PDF(2097 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (8) : 99-102.
论文

基于相位差校正法的全息谱研究

  • 汤宝平,陈建波,章国稳
作者信息 +

STUDY ON HOLOSPECTRUM BASED ON CORRECTION OF RHASE DIFFERENCE

  • Tang Baoping,Chen Jianbo,Zhang Guowen
Author information +
文章历史 +

摘要

针对传统全息谱在噪声干扰下精度降低的问题,提出了一种新的基于相位差校正法的全息谱分析方法。该方法首先对时域信号加窗截断后进行FFT变换,然后引入相位差法校正其频率、幅值和相位,最后合成全息谱图。通过仿真及对柔性转子实验台的振动信号的分析,表明基于相位差校正法的全息谱可以明显提高其分析精度,更加精确而有效地诊断旋转机械的故障。

Abstract

A new method of holospectrum based on correction of phase difference is put forward against to the lower precision of traditional holospectrum in noisy interference. First it takes windowed FFT transformation of signal in time domain and then the frequency,amplitude and phase are corrected by correction of phase difference.At the last, the holospectrum is synthesized.Through the simulation and the analysis of flexible rotor’s vibration signal,The result shows that it has higher precision in practice and can diagnose the rotation machinery fault more accurately and more effectively.

关键词

相位差 频谱校正 全息谱 旋转机械

Key words

phase difference / spectrum correction / holospectrum / rotary machinery

引用本文

导出引用
汤宝平;陈建波;章国稳. 基于相位差校正法的全息谱研究 [J]. 振动与冲击, 2009, 28(8): 99-102
Tang Baoping;Chen Jianbo;Zhang Guowen. STUDY ON HOLOSPECTRUM BASED ON CORRECTION OF RHASE DIFFERENCE[J]. Journal of Vibration and Shock, 2009, 28(8): 99-102
中图分类号: TH113.1   

PDF(2097 KB)

2552

Accesses

0

Citation

Detail

段落导航
相关文章

/