共查询到17条相似文献,搜索用时 171 毫秒
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针对传统的FMEA(故障模式与影响分析)过于定性化、主观化以及不能进行量化分析的问题,本文提出了一种量化FMEA风险等级数的评定方法,并通过层次分析法(AHP)和模糊综合评判法(FCE)的理论分析,构建了动力定位控制系统的综合评判模型,将FMEA的结果进行了量化分析,从而能更好地预防故障的发生。以Arrow号近海支援船DP2动力定位(DP)控制系统为例,选择操作站操作面板为研究对象,对该系统的各个组成部分及其模块进行了故障模式与影响分析并做出评判,列出了可能发生的故障模式,确定了故障等级并提出了建议措施,其分析结果证明FMEA和模糊综合评判法是有效的。通过对动力定位控制系统进行故障模式与影响分析(FMEA),可以对动力定位控制系统和设备进行改进、维护和完善,以提高其可靠性,延长设备的使用寿命,提高动力定位船舶的安全水平。 相似文献
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FMEA在大型高速滚装客船上的应用 总被引:2,自引:0,他引:2
故障模式效果和影响分析(FMEA),是应用在工业可靠性分析领域的一项成熟技术,但在我国船舶领域的应用还是空白。高速客滚船是一种事故多发的船舶,对它进行可靠性分析有重要意义。此文介绍FMEA概念和原理,认为将其应用于高速滚装客船,可有效地提高可靠性和安全性,并讨论应用的技术路线。 相似文献
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ABSTRACTRisk assessment in maritime domain is one of the most cited topics since maritime transportation poses potential hazard for human life, marine environment and property. To mitigate risk and enhance safety awareness in maritime transportation, safety researchers have been seeking proactive solutions. This article prompts a quantitative risk-based approach combining interval type-2 fuzzy sets (IT2FSs) with failure mode and effect analysis (FMEA) to perform a comprehensive risk analysis. Thus, potential failure modes and their effects are revealed by calculating risk prioritisation numbers (RPNs). Whilst the FMEA method provides a robust risk analysing tool with relevant control options, the IT2FSs deals with ambiguity and vagueness of linguistic assessment of decision-makers through the FMEA. Hence, expert’s linguistic assessment in risk assessment can be transformed into useful information in terms of enhancing safety and pollution prevention in maritime industry. To demonstrate the proposed approach, potential failures and effects of a real shipboard oil spill case are handled. The findings show that incomplete information exchanged with local maritime authorities, malfunction of oil skimmer and poor organization of shoreline clean-up team are the most important failures during case of oil spill. The proposed approach provides not only theoretical insight into the maritime transportation industry but also practical contributions to chemical/oil tanker safety and environmental protection by mitigating risk in terms of technical or operational aspects. 相似文献
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船舶电力系统运行良好是船舶安全的重要保证,有必要对系统故障情况进行研究.采用计算机仿真软件MATLAB和ETAP分别对船舶电力系统进行建模及故障工况分析,获取详细的故障工况数据作为故障模式影响分析(FMEA)的基础,用于船舶电力系统的安全可靠方面的研究,有一定的现实意义. 相似文献
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在分析从西非到我国终端客户的铝钒土进口海运供应链(Bauxit Import Maritime Supply Chain,BIMSC)内部和外部影响因素的基础上,采用故障模式与影响分析(Failure Mode and Effects Analysis,FMEA)和模糊贝叶斯网络(Fuzzy Bayesian Network,FBN)相结合的方法,建立BIMSC风险评估方法的概念框架。采用FMEA辨识潜在的失效模式,并剖析失效原因和后果;根据失效模式潜在的因果关系建立贝叶斯网络;利用三角模糊数处理表征风险参数的不确定性,评估BIMSC风险水平,并进行敏感性分析,确定风险因子排序。研究结果表明,港口操作中的违规操作、违规指挥、货物易流态化和安全管理问题是主要的风险因素。 相似文献
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针对海洋钻修机井架及底座的安全评估方法的局限性,采用安全检查表法(SCL)、故障类型及影响分析法(FMEA),以及事故树分析法(FTA)从设备隐患的角度出发对井架进行全面的安全评价,结果表明:SCL可有效识别井架及底座存在的隐患,隐患发生在二层台及井架主体部位居多,安装不合理为最主要的隐患形式;FMEA方法可识别出井架... 相似文献
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共模故障(COMMON MODE FAULT,CMF)广泛存在于复杂系统中,研究如何对系统中可能引发共模故障的故障状态进行识别、提出预防措施、降低共因故障发生概率,成为当今可靠性安全性领域重要的研究方向。共模故障分析(COMMON MODE FAULT ANALYSIS,CMFA)是一种用于复杂系统可靠性、安全性和风险性评价的方法,是故障模式与影响分析和故障树分析的补充,此方法可以用来检验系统各组成部分之间是否满足独立性要求,确定共模故障条件下对系统失效的概率。通过共模故障分析方法在某型民机起落架应用过程的分析研究,为今后此分析方法的应用提供参考。 相似文献
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FPSO关键系统风险分析(英文) 总被引:2,自引:0,他引:2
Risk analysis of key systems have become a growing topic late of because of the development of offshore structures. Equipment failures of offloading system and fire accidents were analyzed based on the floating production, storage and offloading (FPSO) features. Fault tree analysis (FTA), and failure modes and effects analysis (FMEA) methods were examined based on information already researched on modules of relex reliability studio (RRS). Equipment failures were also analyzed qualitatively by establishing a fault tree and Boolean structure function based on the shortage of failure cases, statistical data, and risk control measures examined. Failure modes of fire accident were classified according to the different areas of fire occurrences during the FMEA process, using risk priority number (RPN) methods to evaluate their severity rank. The qualitative analysis of FTA gave the basic insight of forming the failure modes of FPSO offloading, and the fire FMEA gave the priorities and suggested processes. The research has practical importance for the security analysis problems of FPSO. 相似文献