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All Journal Proceedings Conference on Marine Engineering and its Application
Tasya Putri Lindyawati
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Engineering Mechanical Engineering

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Penjadwalan Perawatan Komponen Pada Sistem Pendingin Main engine Crew Boat 41 GT Andreas Nova; Tasya Putri Lindyawati; Nurvita Arumsari; Aminatus Sa'diyah
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2444

Abstract

Currently, there is a growing trend of damages occurring to the main engine, with some cases leading to sailing delays or even endangering human safety. The Crew Boat 41 GT is a vessel operating to transport crews or provide offshore support. Therefore, it is crucial to pay attention to the maintenance of its main engine, especially the cooling sub-system, which plays a vital role in maintaining the working temperature of the main engine to prevent overheating. Consequently, a suitable maintenance scheduling strategy is required for the sub-system components of the Crew Boat 41 GT's main engine to ensure the operational efficiency of the main engine is not disrupted. This study aims to predict the reliability using both qualitative (FMEA) and quantitative methods (theoretical and Monte Carlo simulation) to develop a plan for preventive maintenance scheduling, FMEA analysis identified three critical components, there are sea water pump, heat exchanger, and fresh water pump. The results of the quantitative analysis for these three critical components showed that the RLLM = 0.6, with little difference between the two methods. Additionally, error calculations were performed using RMSE, MAPE, and MAE, with results close to 0. Moreover, from the evaluation of corrective and preventive maintenance, it was found that preventive maintenance is more recommended as it can save costs by approximately 16.26% or Rp 7,703,292.56 for a single maintenance of all components.
Perbandingan Model Peluang Kegagalan Pada Sistem Pendingin Main engine Crew Boat 41 GT Tasya Putri Lindyawati; Nurvita Arumsari; Aminatus Sa'diyah
Proceedings Conference on Marine Engineering and its Application Vol 6 No 1 (2023): Conference on Marine Engineering and its Aplication
Publisher : Politeknik Perkapalan Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33863/cmea.v6i1.2632

Abstract

Damage to the main engine is currently common, some cases result in sailing delays or eventhreaten human safety. Crew boat 41 GT is a ship that operates to transport crew or support offshore. Thus, it is necessary to pay attention to the maintenance of the main engine, especially the cooling sub-system which plays an important role in maintaining the working temperature of the main engine so as not to overheat. Therefore, it is necessary to predict the failure of the 41 GT crew boat main enginecooling sub-system components so that the right time can be determined to carry out maintenance onthese components before damage occurs. In this study, the prediction of reliability value was carriedout using qualitative (FMEA) and quantitative (theoretical and Monte carlo simulation) methods.FMEA analysis resulted in 3 critical components, namely sea water pump, heat exchanger and freshwater pump. The results of quantitative analysis of 3 critical components at RLLM = 0.6 between thetwo methods are not much different and error calculations have been carried out with RMSE, MAPE,and MAE with results close to 0. So, it can be seen that the MCS method can be applied to predictreliability values.
Co-Authors Aminatus Sa’diyah Andreas Nova Nurvita Arumsari