PREVENTIVE MAINTENANCE OF MARINE DIESEL ENGINES USING RECOVERED FOSSIL OILS

Abstract

A preventive maintenance system is designed to meet quality, efficiency, and safety requirements. These requirements have basically been formalized. In particular, it refers to the security requirements stipulated by international conventions. Failure to comply with these requirements is mainly formal and will leave the system in a state of incompetence (Bielawski, Piotr, 2021), so the specific objective of the preventive maintenance process is to take advantage of knowledge of breakdowns and accidents to achieve the maximum possible safety. with the lowest possible cost In this perspective, this study proposes a risk assessment methodology for the evaluation of preventive maintenance planning based on a reliability model for marine engine systems, which allows the use of flexible intervals between interventions. maintenance, and ultimately, the systematization of preventive maintenance methods for marine engines using recovered fossil oils. This model of preventive maintenance of marine engines using recovered fossil oils was generated to condition the monitoring of the crankshaft position, deviations and symptoms of the condition of the tribological joint and diagnostic models based on defined and measurable deviations and vibration symptoms. The generated model allowed to monitor the condition of the big end bearing, the crosshead bearing, the big end bearing and the main bearings. specific for sets of ship machines with engine with crankshaft-piston mechanism, symptoms and deviations, and relationships between them.

Keywords: preventive maintenance, diesel, marine engines, fossil oils.