摘要
为探析自主航行船舶(MASS)功能系统之间的失效机制,提升航行安全,将系统理论过程分析(STPA)方法与模糊认知图(FCM)方法相结合,构建MASS功能系统失效特征分析模型。通过STPA方法对功能系统的控制/反馈关系建模,确定27个控制关系与43个反馈关系,分析潜在的不安全控制行为(UCA)及其产生的关键致因,在此基础上,运用FCM方法构建各功能系统之间的交互关系,并反演出最终稳态下的相对失效概率。结果表明:最为核心的功能模块为电力系统、虚拟船长系统、动力定位系统、避碰系统,其稳定值占比分别为7.66%,7.62%,7.47%,7.14%,应优先确保其可靠性、稳定性和安全性。
In order to analyze the failure mechanism among the functional systems of MASS and improve its navigational safety,STPA and FCM methods were combined to establish a failure analysis model of the functional systems of MASS.The control/feedback relationships of functional systems were modeled using the STPA method.27 control relationships and 43 feedback relationships were identified.Potential unsafe control action(UCA)and their key causes were analyzed.Then,the FCM method was used to further construct the cognitive map of interaction relationships among functional systems.Finally,the relative failure probability of each functional system would be determined when the FCM reaches its steady state.The results indicate that the core functional systems are the power system,virtual captain system,dynamic positioning system and collision avoidance system,and their stability values account for 7.66%,7.62%,7.47%and 7.14%,respectively.Priority should be given to ensuring its reliability,stability,and safety.
作者
秦庭荣
周歆捷
何荥杰
陈伟炯
QIN Tingrong;ZHOU Xinjie;HE Xingjie;CHEN Weijiong(Merchant Marine College,Shanghai Maritime University,Shanghai 201306,China;College of Ocean Science and Engineering,Shanghai Maritime University,Shanghai 201306,China)
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2023年第8期8-14,共7页
China Safety Science Journal
基金
国家自然科学基金资助(52272353)
国家重点研发计划项目(2021YFC 2801005)。
