船舶压载水系统可靠性分析  

Reliability analysis of ship ballast water system

作　　者：杨咏 王晓[2] 兑红炎 陶俊勇[3] YANG Yong;WANG Xiao;DUI Hong-yan;TAO Jun-yong(The 704 Research Institute of CSSC,Shanghai 200031,China;School of Management,Zhengzhou University,Zhengzhou 450001,China;Laboratory of Science and Technology on Integrated Logistics Support,College of Intelligence Science and Technology,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]中国船舶集团有限公司第七〇四研究所,上海200031 [2]郑州大学管理学院,河南郑州450001 [3]国防科技大学智能科学学院装备综合保障技术重点实验室,湖南长沙410073

出　　处：《舰船科学技术》2023年第12期35-39,共5页Ship Science and Technology

摘　　要：压载水系统能过保证船舶在航行过程中船体稳定,是邮轮重要的组成部分。由于压载水系统结构复杂,系统可靠性难以分析。为了分析压载水系统的可靠性变化,考虑系统在连续时间下的状态变化,基于连续贝叶斯网络,建立了一种新的船舶压载水系统可靠性分析方法。首先基于压载水系统的故障机理,提出动态故障树模型。然后利用单位阶跃函数和冲激函数,将动态故障树模型转化为连续时间的贝叶斯网络,对系统可靠性进行分析,最后,利用算例对船舶压载水系统进行仿真,得到船舶压载水系统的可靠性以及剩余寿命随时间变化的曲线。Ballast water system is an important part of the cruise ship.It can ensure the stability of the ship during navigation.However,the reliability of ballast water system is difficult to analyze because of the complexity of its structure.In order to analyze the reliability of ballast water system,a new reliability analysis method is established based on continuous Bayesian network.This method takes into account the state change of the system under continuous time.Firstly,based on the failure mechanism of ballast water system,a dynamic fault tree model is proposed.Then,using unit step function and impulse function,the dynamic fault tree model is transformed into a continuous time Bayesian network to analyze the system reliability.Finally,the ship ballast water system is simulated using the arithmetic example to obtain the reliability and the curve of remaining life with time.

关 键 词：压载水系统 动态故障树 可靠性 连续贝叶斯网络 

分 类 号：U661.1[交通运输工程—船舶及航道工程]