Optimisation of Reliability and Maintenance Plan of the High-Pressure Fuel Pump System on Marine Engine

IF 2 3区工程技术 Q2 ENGINEERING, MARINE

Polish Maritime Research Pub Date : 2022-12-01 DOI:10.2478/pomr-2022-0047

Vlatko Knežević, Ladislav Stazić, Josip Orović, Z. Pavin

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引用次数: 2

Abstract

Abstract This paper presents a method of adjusting and designing the maintenance scheme for the high-pressure fuel pumps of a slow-speed two-stroke marine engine, MAN 6S70MC-C. The maintenance database for the marine fuel system was obtained from the planned maintenance software, and covered a period of 11 years. During this period, 29 failures occurred that required corrective actions. Our methodology includes failure mode analysis, risk analysis, reliability calculation and maintenance interval adjustment. Each failure is described using a failure mode analysis, based on a combination of the mode and cause of failure. The objective of this study is to recommend a new preventive maintenance interval based on the exponential reliability results and the analysed maintenance data. The initial maintenance plan for each fuel pump was set to 8,000 running hours, whereas in the modified plan, it is recommended to set this to 4,000 hours. Our results show an increase in the system reliability from 60% to 95% when the new modified maintenance plan is applied. In addition, the results and the recommended initial maintenance schedule are validated based on three similar types of engine with the same fuel pump system. The new maintenance approach can reduce the risk of component failure, which will lead to increased reliability of the fuel pump system and the optimisation of maintenance costs.

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船用发动机高压燃油泵系统可靠性优化及维修方案

本文介绍了man6s70mc - c型慢速二冲程船用发动机高压燃油泵维修方案的调整和设计方法。船用燃料系统的维修数据库是从计划维修软件中获得的，为期11年。在此期间，发生了29起需要采取纠正措施的故障。我们的方法包括故障模式分析、风险分析、可靠性计算和维修间隔调整。根据失效模式和故障原因的组合，使用失效模式分析来描述每种故障。本研究的目的是基于指数可靠性结果和分析的维修数据，推荐一个新的预防性维修间隔。每台燃油泵的初始维护计划设置为8000小时，修改后的计划建议设置为4000小时。结果表明，采用改进后的维护方案后，系统可靠性从60%提高到95%。此外，基于具有相同燃油泵系统的三种相似类型的发动机，验证了结果和建议的初始维护计划。新的维护方法可以降低部件故障的风险，从而提高燃油泵系统的可靠性并优化维护成本。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Polish Maritime Research 工程技术-工程：海洋

CiteScore

3.70

自引率

45.00%

发文量

审稿时长

>12 weeks

期刊介绍： The scope of the journal covers selected issues related to all phases of product lifecycle and corresponding technologies for offshore floating and fixed structures and their components. All researchers are invited to submit their original papers for peer review and publications related to methods of the design; production and manufacturing; maintenance and operational processes of such technical items as: all types of vessels and their equipment, fixed and floating offshore units and their components, autonomous underwater vehicle (AUV) and remotely operated vehicle (ROV). We welcome submissions from these fields in the following technical topics: ship hydrodynamics: buoyancy and stability; ship resistance and propulsion, etc., structural integrity of ship and offshore unit structures: materials; welding; fatigue and fracture, etc., marine equipment: ship and offshore unit power plants: overboarding equipment; etc.