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A physics-based algorithm for the estimation of bearing spall width using vibrations

机译：基于物理的振动估计轴承剥落宽度的算法

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摘要

Evaluation of the damage severity in a mechanical system is required for the assessment of its remaining useful life. In rotating machines, bearings are crucial components. Hence, the estimation of the size of spalls in bearings is important for prognostics of the remaining useful life. Recently, this topic has been extensively studied and many of the methods used for the estimation of spall size are based on the analysis of vibrations. A new tool is proposed in the current study for the estimation of the spall width on the outer ring raceway of a rolling element bearing. The understanding and analysis of the dynamics of the rolling element-spall interaction enabled the development of a generic and autonomous algorithm. The algorithm is generic in the sense that it does not require any human interference to make adjustments for each case. All of the algorithm's parameters are defined by analytical expressions describing the dynamics of the system. The required conditions, such as sampling rate, spall width and depth, defining the feasible region of such algorithms, are analyzed in the paper. The algorithm performance was demonstrated with experimental data for different spall widths.
机译：需要评估机械系统中的损坏严重程度以评估其剩余使用寿命。在旋转机械中，轴承是至关重要的组件。因此，对轴承剥落尺寸的估计对于剩余使用寿命的预测很重要。最近，对该主题进行了广泛的研究，许多用于估计剥落尺寸的方法都是基于振动分析。当前研究中提出了一种新的工具，用于估计滚动轴承的外圈滚道上的剥落宽度。对滚动元素-滚动相互作用的动力学的理解和分析使通用和自主算法的发展成为可能。从某种意义上讲，该算法是通用的，它不需要任何人为干预即可对每种情况进行调整。该算法的所有参数均由描述系统动力学的解析表达式定义。本文分析了所需条件，例如采样率，剥落宽度和深度，定义了此类算法的可行区域。通过不同剥落宽度的实验数据证明了算法的性能。

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  • 来源
    《Mechanical systems and signal processing》 |2018年第may1期|398-414|共17页
  • 作者

    G. Kogan; R. Klein; J. Bortman;

  • 作者单位

    Pearlstone Center for Aeronautical Engineering Studies and Laboratory for Mechanical Health Monitoring, Department of Mechanical Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 8410501, Israel;

    R.K. Diagnostics, P.O. Box 101, Gilon, D.N. Misgav 20103, Israel;

    Pearlstone Center for Aeronautical Engineering Studies and Laboratory for Mechanical Health Monitoring, Department of Mechanical Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer Sheva 8410501, Israel;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Rolling element bearing; Spall size;

    机译：滚动轴承;散裂尺寸;

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