中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (5): 81-87.doi: 10.16265/j.cnki.issn1003-3033.2020.05.013

• 安全工程技术 • 上一篇    下一篇

基于动态贝叶斯网络的水下连接器故障诊断

陈志煌1, 刘国恒2, 王莹莹**1 副教授, 朱春丽2, 单荐1, 翟小东1   

  1. 1.中国石油大学(北京) 安全与海洋工程学院,北京 102200;
    2.中海油研究总院有限责任公司,北京 100027
  • 收稿日期:2020-02-11 修回日期:2020-04-06 出版日期:2020-05-28 发布日期:2021-01-28
  • 通讯作者: **王莹莹(1982—),女,河南平顶山人,博士,副教授,博士生导师,主要从事水下生产系统故障诊断预警与数字孪生、水下装备安装等相关研究。E-mail:wyy@cup.edu.cn。
  • 作者简介:陈志煌(1995—),男,福建仙游人,硕士研究生,研究方向为海洋石油装备。E-mail:574921541@qq.com。
  • 基金资助:
    国家高技术船舶科研项目(2018GXB01-07);国家重点研发计划项目(2016YFC0303701)。

Fault diagnosis of subsea collet connector based on dynamic Bayesian network

CHEN Zhihuang1, LIU Guoheng2, WANG Yingying1, ZHU Chunli2, SHAN Jian1, ZHAI Xiaodong1   

  1. 1. College of Safety and Ocean Engineering, China University of Petroleum(Beijing), Beijing 102200, China;
    2. CNOOC Research Institute, Beijing 100027, China
  • Received:2020-02-11 Revised:2020-04-06 Online:2020-05-28 Published:2021-01-28

摘要: 为进行垂直卡爪式水下连接器机械结构故障诊断及失效预测,提出一种3层动态贝叶斯网络的垂直卡爪式水下连接器故障诊断方法。针对垂直卡爪式水下连接器常见部位(卡爪、密封圈和驱动环)及失效方式,利用动态贝叶斯网络模拟材料状态随时间的退化,采用专家打分法获得连接器部件的失效数据,从而确定故障层状态的先验概率与故障发生后症状层状态的条件概率,并利用GeNle软件求解动态贝叶斯网络。结果表明:根据观测到的症状层状态,能够得到3种关键部件的后验失效概率变化趋势,并确定故障部件。

关键词: 动态贝叶斯网络, 卡爪式水下连接器, 故障诊断, 专家打分, GeNle

Abstract: In order to diagnose fault and predict failure for mechanical structure of vertical collet subsea connectors, a fault diagnosis method based on three-layer dynamic Bayesian network is proposed. Targeting at common parts (collet, sealing ring and driving ring) and failure modes of connectors, Dynamic Bayesian network was used to simulate degradation of these materials over time, and failure data of components were obtained through expert scoring, so as to determine prior probability of fault layer state and conditional probability of symptom layer state after occurrence of fault as well as solve dynamic Bayesian network by using GeNle software. The results show that based on observed symptom layer state, change trend of posterior failure probability of three key components can be obtained, and faulty component can be found.

Key words: dynamic Bayesian network, subsea collet connector, fault diagnosis, expert scoring, GeNle

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