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Optimal condition-based maintenance decisions for systems with dependent stochastic degradation of components

机译：组件随机依赖退化的系统基于状态的最佳维护决策

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摘要

Components in engineered systems are subjected to stochastic deterioration due to the operating environmental conditions, and the uncertainty in material properties. The components need to be inspected and possibly replaced based on preventive or failure replacement criteria to provide the intended and safe operation of the system. In the present study, we investigate the influence of dependent stochastic degradation of multiple components on the optimal maintenance decisions. We use copula to model the dependent stochastic degradation of components, and formulate the optimal decision problem based on the minimum expected cost rule and the stochastic dominance rules. The latter is used to cope with decision maker's risk attitude. We illustrate the developed probabilistic analysis approach and the influence of the dependency of the stochastic degradation on the preferred decisions through numerical examples.
机译：工程系统中的组件会由于运行环境条件以及材料特性的不确定性而随机变差。需要根据预防或故障更换标准对组件进行检查并可能进行更换，以提供系统预期的安全操作。在本研究中，我们调查了多个组件的随机随机退化对最佳维护决策的影响。我们使用copula建模组件的相关随机退化，并基于最小期望成本规则和随机优势规则制定最优决策问题。后者用于应对决策者的风险态度。我们通过数值示例说明了概率分析方法的发展以及随机降级的依赖性对首选决策的影响。

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  • 来源
    《Reliability Engineering & System Safety》 |2014年第1期|276-288|共13页
  • 作者

    H.P. Hong; W. Zhou; S. Zhang; W. Ye;

  • 作者单位

    Department of Civil and Environmental Engineering, The University of Western Ontario, Ont., Canada N6A 5B9;

    Department of Civil and Environmental Engineering, The University of Western Ontario, Ont., Canada N6A 5B9;

    Department of Civil and Environmental Engineering, The University of Western Ontario, Ont., Canada N6A 5B9;

    Department of Civil and Environmental Engineering, The University of Western Ontario, Ont., Canada N6A 5B9;

  • 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

    Stochastic degradation; Dependency; Copula; Optimum maintenance; Condition-based maintenance;

    机译：随机退化;依赖性;系词;最佳维护;基于条件的维护;

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