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首页> 外文期刊>Mathematical Problems in Engineering >Modeling the Relationship between Vibration Features and Condition Parameters Using Relevance Vector Machines for Health Monitoring of Rolling Element Bearings under Varying Operation Conditions
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Modeling the Relationship between Vibration Features and Condition Parameters Using Relevance Vector Machines for Health Monitoring of Rolling Element Bearings under Varying Operation Conditions

机译：使用相关矢量机对振动特性与状态参数之间的关系进行建模，以在变化的运行条件下对滚动轴承进行健康监测

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摘要

Rotational speed and load usually change when rotating machinery works. Both this kind of changing operational conditions and machine fault could make the mechanical vibration characteristics change. Therefore, effective health monitoring method for rotating machinery must be able to adjust during the change of operational conditions. This paper presents an adaptive threshold model for the health monitoring of bearings under changing operational conditions. Relevance vector machines (RVMs) are used for regression of the relationships between the adaptive parameters of the threshold model and the statistical characteristics of vibration features. The adaptive threshold model is constructed based on these relationships. The health status of bearings can be indicated via detecting whether vibration features exceed the adaptive threshold. This method is validated on bearings running at changing speeds. The monitoring results show that this method is effective as long as the rotational speed is higher than a relative small value.
机译：旋转机械工作时，转速和负载通常会发生变化。这种不断变化的操作条件和机器故障都可能使机械振动特性发生变化。因此，有效的旋转机械健康监测方法必须能够在运行条件变化期间进行调整。本文提出了一种适应性阈值模型，用于在变化的运行条件下进行轴承的健康监测。相关性向量机（RVM）用于回归阈值模型的自适应参数和振动特征的统计特征之间的关系。基于这些关系构造自适应阈值模型。可以通过检测振动特征是否超过自适应阈值来指示轴承的健康状态。该方法已在以可变速度运行的轴承上得到验证。监测结果表明，只要转速高于相对较小的值，该方法就有效。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第2期|123730.1-123730.10|共10页
  • 作者

    Hu Lei; Hu Niao-qing; Fan Bin; Gu Feng-shou; Zhang Xiang-yi;

  • 作者单位

    Natl Univ Def Technol, Coll Mechatron Engn & Automat, Changsha 410073, Hunan, Peoples R China.;

    Natl Univ Def Technol, Coll Mechatron Engn & Automat, Changsha 410073, Hunan, Peoples R China.;

    Natl Univ Def Technol, Coll Mechatron Engn & Automat, Changsha 410073, Hunan, Peoples R China.;

    Univ Huddersfield, Sch Comp & Engn, Huddersfield HD1 3HD, W Yorkshire, England.;

    Natl Univ Def Technol, Coll Mechatron Engn & Automat, Changsha 410073, Hunan, Peoples R China.;

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