Proper performance evaluation of subsea system components is of high significance for reliable operation and remote monitoring or the replacement of the components before the occurrence of any failure. As a part of subsea systems, subsea control system (SCS) plays a key role in accomplishing a reliable performance. Hence, achieving knowledge of the components’ failure rates is highly important in the safety analysis of SCS. To the author's knowledge, limited work is done on the safety analysis of SCS using failure rates for a multitude of components. Also, the number of research papers that are based on industrial works is restricted. Hence, this paper aims to provide a noticeable contribution in fulfilling the referred gap. For this purpose, a safety integrity-level (SIL) analysis is proposed based on a typical OREDA database. In the implementation of the proposed SIL, a failure mode classification table is provided for a selection of SCS components. This is followed by the estimation of several parameters, such as the total time in service, as well as obtaining the values of critical failure rates. The analysis indicates that signal failure is the failure mode occurring more than the other ones. Also, the subsea electronic module yields the highest value of critical failure rates. Besides, a comparison of parameter values is provided for two different versions of the utilized database.

中文翻译：

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基于典型 OREDA 数据库的海底控制系统组件的 SIL 分析

对海底系统组件进行适当的性能评估对于可靠运行和远程监控或在发生任何故障之前更换组件具有重要意义。作为海底系统的一部分，海底控制系统 (SCS) 在实现可靠性能方面发挥着关键作用。因此，了解组件的故障率在 SCS 的安全分析中非常重要。据作者所知，使用大量组件的故障率对 SCS 进行安全分析的工作有限。此外，基于工业作品的研究论文的数量受到限制。因此，本文旨在为填补提到的差距做出显着贡献。为此，基于典型的 OREDA 数据库提出了安全完整性级别 (SIL) 分析。在建议的 SIL 的实施中，为选择的 SCS 组件提供了故障模式分类表。接下来是对几个参数的估计，例如服务的总时间，以及获得关键故障率的值。分析表明，信号故障是比其他故障模式发生得更多的故障模式。此外，海底电子模块产生的临界故障率最高。此外，还为所用数据库的两个不同版本提供了参数值的比较。分析表明，信号故障是比其他故障模式发生得更多的故障模式。此外，海底电子模块产生的临界故障率最高。此外，还为所用数据库的两个不同版本提供了参数值的比较。分析表明，信号故障是比其他故障模式发生得更多的故障模式。此外，海底电子模块产生的临界故障率最高。此外，还为所用数据库的两个不同版本提供了参数值的比较。