垂直升船机液压系统故障传播路径的模糊推理

发布时间：2018-01-25 16:45

本文关键词： 故障推理液压系统传播路径模糊Petri网(FPN) 垂直升船机　出处：《中国安全科学学报》2017年04期 　论文类型：期刊论文

【摘要】：为有效抑制垂直升船机液压系统故障传播,基于液压系统诸结构间的相互关联性及链式连锁特点,建立故障传播模糊Petri网(FPN)模型。基于FPN基本原理,抽象表达液压系统故障传播过程;分析垂直升船机液压系统失效模式,理清故障状态间前后集的逻辑关系,建立液压系统故障传播FPN;利用故障演变规则,模糊推理液压系统故障传播路径。结合三峡升船机进行实例分析。结果表明,其液压系统故障最可能的传播路径为:控制阀损坏-系统无法保压-启闭油缸失效-船厢门液压启闭机故障-系统退出工作。
[Abstract]:In order to restrain the fault propagation of vertical ship lift hydraulic system effectively, based on the interrelation of hydraulic system structure and chain linkage characteristics. The fault propagation fuzzy Petri net model is established. Based on the basic principle of FPN, the fault propagation process of hydraulic system is expressed abstractly. The failure mode of hydraulic system of vertical ship lift is analyzed, the logical relation between the front and back sets of fault states is clarified, and the FPN of hydraulic system fault propagation is established. The fault propagation path of hydraulic system based on fuzzy reasoning is analyzed by using fault evolution rule. The result shows that the fault propagation path of hydraulic system is analyzed by the example of the three Gorges ship lift. The most likely transmission path of hydraulic system failure is: control valve damage, system failure, cylinder failure, ship door hydraulic hoist malfunction and system exit.
【作者单位】：三峡大学湖北省水电机械设备设计与维护重点实验室;三峡大学水利与环境学院;三峡大学经济与管理学院;中国长江三峡集团公司机电工程局;
【基金】：湖北省自然科学基金计划项目资助(2015CFC833) 湖北省水电机械设备设计与维护重点实验室开放基金资助(2016KJX02)
【分类号】：U642
【正文快照】： ***0引言垂直升船机以水头适应能力强、过船时间短的优点,逐渐成为高坝通航建筑物的优先选择目标[1],其液压系统通过改变压强而增大作用力,为承船厢中的相关子系统提供液压动力,实现承船厢上升。但垂直升船机液压系统工艺复杂、各子系统相互关联,任一子部件发生故障,均易引发

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