Use of iron in oil concentration sensor for continuous monitoring of marine diesel engine technical condition

The article examines the features of the general problem of reliability, accuracy and durability of machines, mechanisms and devices, namely, the issue of friction, lubricating action, wear of the surfaces of parts and working bodies, which exist among themselves in very complex correlational dependencies. An approach to increasing the reliability of a ship's diesel engine is proposed, which requires the development of effective calculation methods and models for predicting the durability and wear resistance of materials of parts in friction nodes at the limit of lubrication in a wide range of changes in operating conditions and taking into account the variable modes of operation of a ship's diesel engine. The article considers the general approach and specific features of the construction of the components of the diagnostic system of the ship's internal combustion engine. Based on the selected volume of tasks solved by the diagnostic system, the sequence of functioning of its elements is determined. The implementation of this algorithm can have a significant effect in the complex use of diagnostic information together with statistical information stored individually for each mechanism, when managing its technical condition. On the basis of the proposed diagnostic model, it is possible to recognize the technical condition of marine diesel engines based on tribomonitoring data, detecting changes in friction conditions and an increase in the rate of wear of parts of the cylinder-piston group. This will enable the initiation of preventive corrective actions aimed at ensuring the reliable and safe operation of marine engines