On the potential of rolling bearing strain signals for spall size estimation: Modeling and experiments

IF 8.9 1区 工程技术 Q1 ENGINEERING, MECHANICAL
E. Maljaars , J. Ravesloot , A.C.F. Janssen , H.A. Mol , C.G. Murguia , R.H.B. Fey
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引用次数: 0

Abstract

This paper evaluates a strain measurement technique using raw signals for estimating the spall size in rolling bearings, enhancing condition-based predictive maintenance. Traditional methods, reliant on acceleration for defect severity assessment, struggle with unpredictable factors like transfer paths and varying operational conditions. Alternative approaches using shaft-housing displacement, housing strain, and load cells have shown potential in identifying spall length. However, these methods do not provide the rolling element contact forces during spall over-rolling, which potentially contain more detailed information about spall geometry, propagation rate, and potential quality loss and consequential damage.
The study introduces a thorough analysis of bearing strain signals extracted at the bearing outer ring surface in the presence of spalls. A dynamic model with experimental validation is used to analyze the impact of various parameters on strain signal features and rolling element contact forces. The results indicate that bearing strain signals offer distinct and consistent defect severity features, largely unaffected by speed and load, addressing the primary challenges of acceleration-based methods. A single strain raw measurement signal reveals the spall size and the reduction in contact forces.
This method can be an important enabler for physics-based prognostics, leveraging actual defect geometry and contact force data to predict spall progression. Consequently, bearing strain-based monitoring facilitates effective, true condition-based predictive maintenance.
滚动轴承应变信号在小块尺寸估计中的潜力:建模与实验
本文评估了一种使用原始信号估计滚动轴承小块尺寸的应变测量技术,增强了基于状态的预测性维护。传统的方法依赖于缺陷严重性评估的加速,与不可预测的因素(如转移路径和变化的操作条件)作斗争。使用轴-壳体位移、壳体应变和称重传感器的替代方法已显示出识别小片长度的潜力。然而,这些方法不提供在小块过滚过程中的滚动单元接触力,这可能包含更多关于小块几何形状、传播速率、潜在质量损失和相应损害的详细信息。该研究对存在碎片的轴承外圈表面提取的轴承应变信号进行了深入的分析。采用经过实验验证的动态模型,分析了各参数对应变信号特征和滚动体接触力的影响。结果表明,轴承应变信号提供了明显和一致的缺陷严重程度特征,在很大程度上不受速度和负载的影响,解决了基于加速度方法的主要挑战。单应变原始测量信号显示了颗粒尺寸和接触力的减小。这种方法可以成为基于物理的预测的重要推动者,利用实际缺陷几何形状和接触力数据来预测小块的进展。因此,基于轴承应变的监测有助于有效,真实的基于状态的预测性维护。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Mechanical Systems and Signal Processing
Mechanical Systems and Signal Processing 工程技术-工程:机械
CiteScore
14.80
自引率
13.10%
发文量
1183
审稿时长
5.4 months
期刊介绍: Journal Name: Mechanical Systems and Signal Processing (MSSP) Interdisciplinary Focus: Mechanical, Aerospace, and Civil Engineering Purpose:Reporting scientific advancements of the highest quality Arising from new techniques in sensing, instrumentation, signal processing, modelling, and control of dynamic systems
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