叶顺流

摘  要：故障报告、分析和纠正措施系统（FRACAS）是用于产品故障归零进而实现可靠性增长的管理系统，其实现方案与产品特点和研制流程的适应性是确保系统有效可用的关键。本文根据核电厂仪控系统研制工作的特点，提出了一种基于开源缺陷跟踪工具Bugzilla实现FRACAS故障闭环流程的技术方案。该方案以数据定义和流程配置为核心，将可靠性信息和故障处理流程进行整合，实现定制化故障管理系统。结合在某型仪控系统研制阶段的实际应用，记录并解决了大量的故障。通过分析采集的故障数据发现，仪控系统实际发生故障与可靠性预计故障在分布趋势上具有一致性，为仪控系统的可靠性设计和维修策略提供了参考，并验证了该实现方案的有效性。

关键词：FRACAS  仪控系统  故障数据  可靠性  Bugzilla

中图分类号：TP273                           文献标识码：A                  文章编号：1674-098X（2021）01（a）-0038-05

Abstract：Failure reporting， analysis and corrective action system （FRACAS） is a management system used for return-to-zero of product failure and achieving reliability growth. The key to ensure the system effective and functional is that implementation scheme should be compatible with product features and development workflow. According to development work characteristics of instrument and control （I&C） system for nuclear power plant， a technical scheme is proposed to implement FRACAS failure close-loop process based on an open source bug-tracking tool named Bugzilla. The core work of the scheme is data definition and workflow configuration. Reliability information and failure process are integrated to achieve customized failure management system. Combining with actual application in the development phase of a certain type of I&C system， large amount of failure is recorded and solved with the system. Accumulated failure data indicates that actually occurred failure and predicted failure of the I&C system show consistency in distribution trend. It provides reference for reliability design and maintenance strategy of I&C system， while the implementation scheme is proved to be effective.

Key Words：FRACAS; I&C system; Failure data; Reliability; Bugzilla

為确保核电厂能安全稳定地运行，其仪控系统应当具有相当高的可靠性和安全性水平。在产品研制阶段尽早发现并解决潜在故障，是提高核电厂仪控系统固有可靠性的有效方法。GB/T 9225中提出，为了估计仪控系统的可靠性，其数学模型要求各个部件故障率数值作为输入，需建立相应的数据程序。故障报告、分析和纠正措施系统（FRACAS）就是一种有效的故障管理方式，在军工、航空和轨道交通等领域有广泛应用。针对核电厂仪控系统的FRACAS也有原理和使用流程方面的研究[1]，但在实现方案以及运行数据方面的研究较少。……