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Field degradation modeling and prognostics under time-varying operating conditions: A Bayesian based filtering algorithm

机译：现场降解建模与延时运行条件下的预测：基于贝叶斯的滤波算法

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摘要

In practice, degradation modeling and prognostics for a product working in field is of importance for condition-based maintenance, meanwhile a challenging work due to the uncertainty in degradation and the time-varying operating conditions. This study investigates a degradation modeling framework for field working product and its applications by incorporating multiple data sources to associate the operating condition and reduce the uncertainty. The Wiener process is adopted to model the degradation process with nonlin-earity, unit-to-unit variation, and condition covariates, which is delineated by state space modeling. Meanwhile, the acceleration factor, which establishes the relationship between operating condition and degradation rate, is integrated to adapt the drift parameter. A recursive filtering algorithm based on Bayesian theorem is employed for online updating of drift. Finally, a simulation study and an application on degradation modeling of turbofan engine are given to demonstrate the feasibility and validity of the proposed model.
机译：在实践中，在现场工作的产品的降解建模和预测对于基于条件的维护的重要性是重要的，同时由于劣化的不确定性和时变运行条件而有挑战性的工作。本研究通过结合多个数据源来调查用于现场工作产品及其应用来关联操作条件并减少不确定性的劣化建模框架。采用维纳过程以模拟具有非林 - 单位变化和条件协变量的劣化过程，并通过状态空间建模描绘。同时，建立运行条件与劣化率之间关系的加速度因数以适应漂移参数。基于贝叶斯定理的递归过滤算法用于漂移的在线更新。最后，给出了仿真研究和对涡轮机发动机的降解建模的应用，证明了所提出的模型的可行性和有效性。

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  • 来源
    《Applied Mathematical Modelling》 |2021年第11期|435-457|共23页
  • 作者

    Shizheng Li; Zhaojun Yang; Chuanhai Chen; Chunming Yu; Hailong Tian; Tongtong Jin;

  • 作者单位

    Key Laboratory of CNC Equipment Reliability Ministry of Education Changchun Jilin 130025 China School of Mechanical and Aerospace Engineering Jilin University Changchun Jilin 130025 China;

    Key Laboratory of CNC Equipment Reliability Ministry of Education Changchun Jilin 130025 China School of Mechanical and Aerospace Engineering Jilin University Changchun Jilin 130025 China;

    Key Laboratory of CNC Equipment Reliability Ministry of Education Changchun Jilin 130025 China School of Mechanical and Aerospace Engineering Jilin University Changchun Jilin 130025 China;

    Shenyang Machine Tool Co. Ltd Shenyang Liaoning 110142 China;

    Key Laboratory of CNC Equipment Reliability Ministry of Education Changchun Jilin 130025 China School of Mechanical and Aerospace Engineering Jilin University Changchun Jilin 130025 China;

    Key Laboratory of CNC Equipment Reliability Ministry of Education Changchun Jilin 130025 China School of Mechanical and Aerospace Engineering Jilin University Changchun Jilin 130025 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Remaining useful life estimation; Bayesian filtering; Wiener process; State space model; Acceleration factor; Reliability;

    机译：留下有用的生活估计;贝叶斯过滤;维纳流程;国家空间模型;加速因素;可靠性;

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