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Statistical gear health analysis which is robust to fluctuating loads and operating speeds

机译：统计的齿轮运行状况分析，对负载和运行速度的波动具有鲁棒性

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摘要

Condition-based maintenance is concerned with the collection and interpretation of data to support maintenance decisions. The non-intrusive nature of vibration data enables the monitoring of enclosed systems such as gearboxes. It remains a significant challenge to analyze vibration data that are generated under fluctuating operating conditions. This is especially true for situations where relatively little prior knowledge regarding the specific gearbox is available. It is therefore investigated how an adaptive time series model, which is based on Bayesian model selectioa may be used to remove the non-fault related components in the structural response of a gear assembly to obtain a residual signal which is robust to fluctuating operating conditions. A statistical framework is subsequently pro posed which may be used to interpret the structure of the residual signal in order to facilitate an intuitive understanding of the condition of the gear system. The proposed methodology is investigated on both simulated and experimental data from a single stage gearbox.
机译：基于条件的维护与数据的收集和解释有关，以支持维护决策。振动数据的非侵入性使监控封闭系统（例如变速箱）成为可能。分析在变化的运行条件下产生的振动数据仍然是一项重大挑战。对于有关特定变速箱的现有知识很少的情况尤其如此。因此，研究了如何基于贝叶斯模型选择的自适应时间序列模型可用于去除齿轮组件结构响应中与故障无关的组件，以获得对波动的工况具有鲁棒性的残差信号。随后提出了统计框架，该统计框架可以用于解释残余信号的结构，以便于直观地理解齿轮系统的状况。对单级变速箱的模拟和实验数据进行了研究。

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  • 来源
    《Mechanical systems and signal processing》 |2012年第2期|p.651-666|共16页
  • 作者

    T. Heyns; S.J. Godsill; J.P. de Villiers; P.S. Heyns;

  • 作者单位

    Department of Electronic and Computer Engineering, University of Pretoria, South Africa,Defence Peace Safety and Security (DPSS) Division of the Council for Scientific and Industrial Research (CSIR) of South Africa, South Africa;

    rnSignal Processing and Communications Laboratory, Electronic Engineering, Cambridge, United Kingdom;

    rnDepartment of Electronic and Computer Engineering, University of Pretoria, South Africa,Defence Peace Safety and Security (DPSS) Division of the Council for Scientific and Industrial Research (CSIR) of South Africa, South Africa;

    rnDynamic Systems Croup, Department of Mechanical and Aeronautical Engineering, University of Pretoria, South Africa;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    gear maintenance; residual analysis; statistical gear model; bayesian model selection;

    机译：齿轮保养;残差分析统计齿轮模型;贝叶斯模型选择;

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