Title :
Evaluation of reliability and safety for an underwater dry maintenance cabin
Author :
Liang, Xiaofeng ; Yi, Hong ; Zhang, Yufang ; Li, Dan
Author_Institution :
Sch. of Naval Archit., Shanghai Jiaotong Univ., Shanghai, China
Abstract :
Effectiveness of an underwater dry maintenance cabin (UDMC) is mainly determined by its reliability, availability and safety. In this paper, the reliability and safety of a UDMS is evaluated qualitatively and quantitatively via fault tree analysis (FTA). According to the composition, mission characteristic and operational condition of the UDMC, three kinds of typical failure patterns are identified. All ultimate causes, or combination of causes that are responsible for or contribute to the top events, are recognized via FTA. Then, based on minimum cut sets, probability of system failure is calculated by numerical simulations which show that UDMC is of high reliability and safety. Moreover, with the aid of theory of the critical importance, the weak links of the system, which are required in making an effective preventative maintenance strategy, are identified. Finally, suggestions to improve the reliability and safety of the UDMC are proposed.
Keywords :
fault trees; pipelines; preventive maintenance; probability; safety systems; failure pattern; fault tree analysis; numerical simulation; pipelines; preventative maintenance strategy; probability; reliability; safety evaluation; underwater dry maintenance cabin; Civil engineering; Costs; Fault trees; Marine safety; Numerical simulation; Oceans; Pipeline processing; Preventive maintenance; Reliability engineering; US Department of Transportation; critical importance; fault tree analysis; numerical simulation; reliability and safety evaluation; underwater dry maintenance cabin;
Conference_Titel :
Reliability, Maintainability and Safety, 2009. ICRMS 2009. 8th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4903-3
Electronic_ISBN :
978-1-4244-4905-7
DOI :
10.1109/ICRMS.2009.5270143
