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Analysing to the Reliabilty of the Marine Main Engine by Means of the FTA

Author: SunHuaDong
Tutor: YuHongLiang
School: Dalian Maritime University
Course: Marine Engineering
Keywords: Ships host Reliability Fault Tree CAFTA Fuzzy Comprehensive Evaluation
CLC: U664.3
Type: Master's thesis
Year: 2010
Downloads: 85
Quote: 0
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Abstract


With the continuous development of China 's shipping industry , especially on the ship the ship's main propulsion plant reliability requirements getting higher and higher . The ship's main propulsion device failure will directly affect the ship 's normal itinerary even endanger property and lives of people . Therefore , the reliability of the main propulsion unit is one of the hot spots of the shipping sector . The ship hosts is to promote the most important device in the device , but is also the weakest link of the ship reliability . Therefore, the reliability of the analysis of the host is necessary, it is to improve the reliability of the premise by the host . To analyze the reliability of the device , it must start from the failure of the device may occur . First, to determine qualitatively fault occurs all the reason or reasons of composition , and then quantitatively determine the probability of occurrence of the fault , to verify whether the probability of occurrence of significant failures to meet reliability requirements . Fault Tree Analysis (Fault Tree Analysis, FTA) is one of the most important means of equipment reliability analysis , it is particularly suited to the complex evaluation of system failure , condensed , image and accurate , but also qualitative fault and quantitative evaluation . Fault tree analysis , a thorough understanding of the system , identify the weak links . This article as a starting point for research to improve reliability , a common fault of the host research occurred through the fault tree evaluation failure probability , and thus provide a reference for the reliability of the system , and also provide certain reference value to the management and maintenance staff . The article also uses a computer-aided analysis ( CAFTA ) , and simulation instead of calculation , convenient and quick. Then use the fuzzy comprehensive evaluation method of system reliability analysis and evaluation . The combination of the two conclusions , more accurate conclusions can be drawn on the reliability of the system state .

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CLC: > Transportation > Waterway transport > Marine Engineering > Ship machinery > Marine propulsion device
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