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首页> 外文期刊>Mechanical systems and signal processing >A fault diagnosis scheme for planetary gearboxes using modified multi-scale symbolic dynamic entropy and mRMR feature selection
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A fault diagnosis scheme for planetary gearboxes using modified multi-scale symbolic dynamic entropy and mRMR feature selection

机译：基于改进的多尺度符号动态熵和mRMR特征选择的行星齿轮箱故障诊断方案

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摘要

Health condition identification of planetary gearboxes is crucial to reduce the downtime and maximize productivity. This paper aims to develop a novel fault diagnosis method based on modified multi-scale symbolic dynamic entropy (MMSDE) and minimum redundancy maximum relevance (mRMR) to identify the different health conditions of planetary gearbox. MMSDE is proposed to quantify the regularity of time series, which can assess the dynamical characteristics over a range of scales. MMSDE has obvious advantages in the detection of dynamical changes and computation efficiency. Then, the mRMR approach is introduced to refine the fault features. Lastly, the obtained new features are fed into the least square support vector machine (LSSVM) to complete the fault pattern identification. The proposed method is numerically and experimentally demonstrated to be able to recognize the different fault types of planetary gearboxes.
机译：行星齿轮箱的健康状况识别对于减少停机时间和最大化生产率至关重要。本文旨在开发一种基于修正的多尺度符号动态熵（MMSDE）和最小冗余最大相关性（mRMR）的故障诊断方法，以识别行星齿轮箱的不同健康状况。提出了MMSDE来量化时间序列的规律性，它可以评估一系列尺度上的动力学特性。 MMSDE在检测动态变化和计算效率方面具有明显的优势。然后，引入了mRMR方法来完善故障特征。最后，将获得的新特征输入最小二乘支持向量机（LSSVM）以完成故障模式识别。数值和实验证明了所提出的方法能够识别行星齿轮箱的不同故障类型。

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  • 来源
    《Mechanical systems and signal processing》 |2017年第7期|295-312|共18页
  • 作者

    Yongbo Li; Yuantao Yang; Guoyan Li; Minqiang Xu; Wenhu Huang;

  • 作者单位

    Department of Astronautical Science and Mechanics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China;

    Department of Astronautical Science and Mechanics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China;

    Ministry of Education Key Laboratory of High-efficiency and Clean Mechanical Manufacture, School of Mechanical Engineering, Shandong University, Jinan, Shandong 250061, China;

    Department of Astronautical Science and Mechanics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China;

    Department of Astronautical Science and Mechanics, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Modified multi-scale symbolic dynamic entropy (MMSDE); mRMR; Planetary gearboxes; Fault diagnosis;

    机译：修正的多尺度符号动态熵（MMSDE）;mRMR;行星齿轮箱;故障诊断;

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