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華中科技大學學報(自然科學版) 2020, Vol. 48 Issue (10): 99-103 DOI10.13245/j.hust.201017

欄目:船舶與海洋工程
深海載人平臺排水系統可靠性的馬爾可夫分析
張 康 , 曹海斌 , 郝 恒
中國船舶科學研究中心深海載人裝備國家重點實驗室,江蘇 無錫 214082
摘要 為評估深海載人平臺排水系統的可靠性,建立該可修復系統的馬爾可夫分析模型,并對其進行可靠性分析.首先,分析排水系統的任務可靠性框圖并提出假設,建立馬爾可夫隨機過程狀態轉移模型;然后,運用馬爾可夫過程原理推導出排水系統的瞬態、穩態可用度和平均故障時間等可靠性指標計算公式;最后,利用統計數據計算得到排水系統的穩態可用度值為0.992 9,平均故障時間為5 631 h.分析系統組成單元的故障率對可靠性指標的影響,結果表明:水泵失效率變化對系統可靠性的影響最大,電動閥失效率變化的影響次之,通海閥失效率變化的影響最?。?
關鍵詞 排水系統 ;馬爾可夫模型 ;可靠性 ;可用度 ;平均故障時間
Markov analysis on reliability of drainage system of subsea manned submersible
ZHANG Kang , CAO Haibin , HAO Heng
State Key Laboratory of Deep-sea Manned Vehicle,China Ship Scientific Research Center,Wuxi 214082,Jiangsu China
Abstract To evaluate the reliability of drainage system of subsea manned submersible,the Markov analysis model was developed for this repairable system and its reliability was analyzed.First,the mission reliability block diagram of the drainage system was analyzed and assumptions were made,and the state transition model of Markov random process was established.Then,the formulas for the reliability indicators,namely the instantaneous availability,the stationary availability and the mean time to failure (MTTF),were deduced by applying the Markov process theory for the drainage system.Finally,the values of stationary availability and MTTF were calculated by utilizing statistical data,which were 0.992 9 and 5 631 h,respectively.The influence on the reliability index made by the failure rate of each system components was analyzed.Results show that the changes of the pump failure rate have the highest impact on the system reliability,and the changes of the electric valve failure rate have the relative higher effect on the system reliability,while the changes of outboard valve failure rate affect the system reliability at the lowest level.
Keywords drainage system ; Markov model ; reliability ; availability ; mean time to failure
基金資助國家重點研發計劃資助項目(2016YFC0303700)

中圖分類號P751
文獻標志碼A
文章編號1671-4512(2020)10-0099-05
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文獻來源
張 康, 曹海斌, 郝 恒. 深海載人平臺排水系統可靠性的馬爾可夫分析[J]. 華中科技大學學報(自然科學版), 2020, 48(10): 99-103
DOI:10.13245/j.hust.201017
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