噪声与振动控制

›› 2009, Vol. 29 ›› Issue (5): 77-79.DOI: 10.3969/j.issn.1006-1355.2009.05.021

• 论文 • 上一篇    下一篇

《分数倒谱及其在机械故障诊断中应用研究》

刘立州1，王穗平2，李志农1，刘治华1   

  1. (1.郑州大学机械工程学院 郑州 450001, 2. 河南交通职业技术学院 郑州 450005)
  • 收稿日期:2009-04-01 修回日期:1900-01-01 出版日期:2009-10-18 发布日期:2009-10-18
  • 通讯作者: 刘立州

《Fractional Cepstrum and Its Application in Machine Fault Diagnosis》

LIU Li-zhou1, WANG Sui-ping2, LI Zhi-nong1, LIU Zhi-hua1   

  1. (1. School of Mechanical Engineering, Zhengzhou University, Zhengzhou 450001, China2. Henan Vocational & Technical College of Communications, Zhengzhou, 450005, China)
  • Received:2009-04-01 Revised:1900-01-01 Online:2009-10-18 Published:2009-10-18
  • Contact: LIU Li-zhou

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摘要：

论述了分数倒谱的定义和算法，提出了一种基于分数倒谱的机械故障诊断方法。并与倒谱分析方法进行对比分析。实验研究表明，分数倒谱优于传统的倒频谱分析方法，分数倒谱能有效抑制干扰，提高图谱质量。

关键词: 分数阶Fourier变换, 分数倒谱, 故障诊断

Abstract:

The definition and algorithm of fractional cepstrum are introduced. A new machine fault diagnosis method based on fractional cepstrum is proposed. The experimental result shows that fractional cepstrum is superior to the traditional cepstrum. It can suppress the interference and enhance the quality of the diagram spectrum.

Key words: fractional Fourier transform, fractional cepstrum, fault diagnosis

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