摘要
水面无人艇系统的可靠性对其海上作业而言至关重要。传统方法通过构建系统可靠性模型并计算相关指标来指导系统设计和制定预防性维修策略。然而,系统在运行阶段,一旦发生非期望状态,这些指标往往无法提供足够的决策支持。为了克服这一局限性,以海底地形勘测无人艇为研究对象,采用基于格理论的有限退化结构(FDS)分析法,构建了无人艇多态系统的可靠性模型。利用FDS方法的场景分析功能,可以确定系统正常工作、性能退化和性能失效等状态的临界场景,从而减少工作人员排查故障时间和非必要停机时间等,指导系统的可靠性决策,提升决策效率。
The reliability of unmanned surface vessel(USV)systems is crucial for their operations at sea.Existing methods primarily rely on the establishment of a reliability model to calculate reliability metrics,guiding system design and preventive maintenance strategies for reliability decisions.However,during the operational phase,when unexpected system states occur,reliability metrics may provide limited decision-making information for the system.In addressing the limitations of reliability metrics in guiding system decisions during the operational phase,this study focuses on underwater terrain surveying unmanned vessels as an example.It utilizes the Finite Degradation Structures(FDS)analysis method based on lattice theory to establish a reliability model for the polymorphic system of unmanned vessels.Through the unique scenario analysis capabilities of the FDS method,critical thresholds for maintaining the system in normal operation,performance degradation,and performance failure states are determined.This reduces the time spent by personnel in troubleshooting and unnecessary downtime,guiding the system in formulating reliability decision-making strategies and improving the efficiency of reliability decisions.
作者
陈龙灿
杨柳
朱传军
CHEN Longcan;YANG Liu;ZHU Chuanjun(School of Mechanical Engineering,Hubei Univ.of Tech.,Wuhan 430068,China)
出处
《湖北工业大学学报》
2025年第1期12-19,共8页
Journal of Hubei University of Technology
基金
湖北工业大学高层次人才科研启动基金(XJKY20220045)
湖北工业大学横向科技项目(2022232)基金项目。
关键词
水面无人艇
有限退化结构
多态系统
可靠性决策
场景分析
surface unmanned vessel
finite degradation structures
multistate system
reliability decision
scenario analysis
