• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Reliability Engineering & System Safety >Surveillance test and monitoring strategy for the availability improvement of standby equipment using age-dependent model
【24h】

Surveillance test and monitoring strategy for the availability improvement of standby equipment using age-dependent model

机译：使用年龄相关模型的备用设备可用性提高的监视测试和监视策略

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

In many cases, the safety of a nuclear power plant greatly depends on the successful operation of specific standby equipment at the time of demand arrival. For the effective management of safety-critical standby equipment, unavailability measures are introduced and widely applied. In this study, we propose an age-dependent unavailability model for standby equipment that considers aging-relevant information, such as the number of actual operations, the elapsed time from installation, and maintenance activities, in an integrated manner. Based on the proposed model, we present two availability enhancement strategies: the Online Monitoring based Inspection Method (OMIM) and the Shortening Surveillance Test Interval Method (SSTIM). In the OMIM, 'elapsed-time sensitive' elements are monitored, without actual operation, at the differentiated monitoring interval with the help of sensing devices. For the remaining parts of the elements, actual testing is performed with an adaptive interval for each standby turn by the SSTIM. The effectiveness of the proposed enhancement schemes is demonstrated through a case study for the motor-operated valve (MOV). It is our belief that the proposed schemes can be widely applied in areas such as equipment testing, maintenance strategies, dynamic probabilistic safety assessment (PSA), and risk-informed regulations.
机译：在许多情况下，核电站的安全性在很大程度上取决于需求到达时特定备用设备的成功运行。为了对安全关键型备用设备进行有效管理，引入了不可用措施并得到广泛应用。在这项研究中，我们为备用设备提出了一个与年龄相关的不可用性模型，该模型以综合方式考虑了与老化相关的信息，例如实际操作的次数，安装的经过时间以及维护活动。基于提出的模型，我们提出了两种可用性增强策略：基于在线监视的检查方法（OMIM）和缩短监视测试间隔方法（SSTIM）。在OMIM中，借助传感设备，以不同的监视间隔监视“经过时间敏感”元素，而无需实际操作。对于元素的其余部分，SSTIM对每个备用弯以自适应间隔执行实际测试。通过对电动阀（MOV）进行案例研究，证明了所提出的增强方案的有效性。我们相信，所提议的方案可以广泛应用于设备测试，维护策略，动态概率安全评估（PSA）和风险相关法规等领域。

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