...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Mathematical Modelling >Condition-based maintenance with imperfect inspections for continuous degradation processes
【24h】

Condition-based maintenance with imperfect inspections for continuous degradation processes

机译：基于条件的维护，对连续降解过程的不完美检查

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A condition-based maintenance (CBM) strategy is now recognized as an efficient approach to perform maintenance at the best time before failures so as to save lifetime cycle cost. For continuous degradation processes, a significant source of variability lies in measurement errors caused by imperfect inspections, and this may lead to "false positive" or "false negative" observations, and consequently to inopportune maintenance decisions. To the best of our knowledge, researches on CBM optimization with imperfect inspections remain limited for continuous degradation processes, even though the subject is of practical interest for the implementation of a CBM policy. Imperfect inspections are indeed imperfect but still return interesting information on the system degradation level, and making them perfect can be expensive. Therefore, we analyze the economic performance of a maintenance policy with imperfect inspections, and compare it with the classical policy with perfect inspections to see which policy offers the best benefit in a given situation. Furthermore, a CBM policy with a two-stage inspection scheme is proposed to take benefit of mixing both perfect and imperfect inspections in the same maintenance policy. Through numerical experiments and a real case study, it is shown that the policy with imperfect inspections can be better than the classical one, and that the proposed policy with a two-stage inspection scheme always leads to the minimum long run maintenance cost rate.
机译：现在，基于条件的维护（CBM）策略被认为是在故障前的最佳时间进行维护的有效方法，以节省寿命周期成本。对于连续的降解过程，重要的可变性来源在于不完美检查引起的测量误差，这可能导致“假阳性”或“假阴性”观察，并因此导致不适的维护决策。据我们所知，对于持续劣化过程的CBM优化对CBM优化的研究仍然有限，即使该主题对实施CBM政策的实际兴趣。不完美的检查确实是不完美的，但仍然返回有关系统退化水平的有趣信息，并使它们完美可以昂贵。因此，我们分析了不完美检查的维护政策的经济绩效，并将其与经典政策进行比较，以完美的检查，以了解哪种政策在特定情况下提供最佳利益。此外，建议采用双阶段检查方案的CBM政策，以利用在同一维护政策中混合完美和不完美的检查。通过数值实验和实际案例研究，表明，具有不完美检查的政策可能比经典的政策更好，而两级检查计划的建议政策总会导致最低的长期维护成本率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号