...
首页> 外文期刊>Mechanical systems and signal processing >The spectral kurtosis: application to the vibratory surveillance and diagnostics of rotating machines
【24h】

The spectral kurtosis: application to the vibratory surveillance and diagnostics of rotating machines

机译:光谱峰度:在旋转机械振动监测和诊断中的应用

获取原文
获取原文并翻译 | 示例
           

摘要

In the previous paper, the authors have demonstrated the high potential of the spectral kurtosis (SK) to detect and characterise non-stationary signals. The present paper brings together these ideas and shows how the SK can be efficiently used in the vibration-based condition monitoring of rotating machines. First, and in contrast to classical kurtosis analysis, the SK provides a robust way of detecting incipient faults even in the presence of strong masking noise. Second, the SK offers an almost unique way of designing optimal filters for filtering out the mechanical signature of faults. The first property is of practical importance for monitoring purposes, whereas the second one proves very useful in diagnostics. Another originality of the paper is the introduction of the concept of kurtogram, from which optimal band-pass filters can be deduced, for instance as a prelude to envelope analysis. All the original findings presented in the paper are illustrated using actual industrial cases.
机译:在先前的论文中,作者已经证明了光谱峰度(SK)在检测和表征非平稳信号方面的巨大潜力。本文汇集了这些想法,并展示了如何将SK有效地用于旋转机械基于振动的状态监测。首先,与经典峰度分析相反,SK即使在存在强大的掩蔽噪声的情况下,也提供了一种可靠的方法来检测初期故障。其次,SK提供了一种设计最佳滤波器的几乎独特的方法,用于滤除故障的机械特征。第一个属性对于监视目的具有实际重要性,而第二个属性在诊断中被证明非常有用。本文的另一个独创性是引入了峰度图的概念,从中可以得出最佳的带通滤波器,例如作为包络分析的前奏。本文中提出的所有原始发现均使用实际的工业案例进行了说明。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号