基于DBN的小型无人船舶动力系统可靠性分析  

Reliability Analysis of Small Unmanned Ship Power System Based on DBN

作　　者：刘润泽 尹俊杰 安骥[2] LIU Runze;YIN Junjie;AN Ji(Marine College,Beibu Gulf University,Qinzhou 535009;Merchant Shipping College,Shanghai Maritime University,Shanghai 200135)

机构地区：[1]北部湾大学海运学院,钦州535009 [2]上海海事大学商船学院,上海200135

出　　处：《舰船电子工程》2025年第1期146-151,共6页Ship Electronic Engineering

基　　金：广西高校中青年教师(科研)基础能力提升项目“基于无人船舶的主推进动力装置设计方案研究”(编号:2022KY0421)资助。

摘　　要：动力系统的可靠性对于无人船舶来说尤为重要,研究旨在设计出小型无人船舶动力系统,考虑其系统逻辑结构、冗余配置和动态行为,将动态故障树映射到动态贝叶斯网络中,然后基于动态贝叶斯网络的复杂系统可靠性建模和分析方法,分析三种运行模式下整个动力系统的可靠性,选出最优运行模式和关键重要部件,最后对关键重要部件重新进行冗余配置,得到的可靠性结果与之前结果进行比对分析。研究结果表明:混合运行模式是最优选择,交直流转换器为最重要部件,对其冗余配置后,整体可靠性提升显著。研究可为无人船舶动力系统的可靠性设计和优化提供参考。The reliability of the power system is particularly important for unmanned ships.This study aims to design the pow⁃er system of small unmanned ships.Considering the logical structure,redundant configuration and dynamic behavior of the system,the dynamic fault tree is mapped to the dynamic Bayesian network,and the reliability modeling and analysis method of complex sys⁃tems based on the dynamic Bayesian network is proposed.The reliability of the overall power system of the three operating modes are analyzed,the optimal operating mode and the key important components are selected,and the redundancy of the key important com⁃ponents is re-configured.The results show that the hybrid operation mode is the best choice,and the AC/DC converter is the most important component.After redundant configuration,the overall reliability can be improved significantly.This study can provide ref⁃erence for the reliability design and optimization of unmanned ship power system.

关 键 词：动态贝叶斯网络 可靠性分析 运行模式 关键重要性分析 无人船舶动力系统 

分 类 号：G642.0[文化科学—高等教育学]