The Mathematical Models of the Operation Process for Critical Production Facilities Using Advanced Technologies

Abstract

The paper presents data on the problems of monitoring and diagnosing the technical conditions of critical production facilities, such as torpedo ladle cars, steel ladles. The accidents with critical production facilities, such as torpedo ladle cars, lead to losses and different types of damages in the metallurgical industry. The paper substantiates the need for a mathematical study of the operation process of the noted critical production facilities. A Markovian graph has been built that describes the states of torpedo ladle cars during their operation. A mathematical model is presented that allows determining the optimal frequency of diagnostics of torpedo ladle cars, which, in contrast to the existing approaches, take into account the procedures for preventive diagnostics of torpedo ladle cars, without taking them out of service. Dependence of the utilization coefficient on the period of diagnostics of PM350t torpedo ladle cars was developed. The results (of determining the optimal period of diagnostics for PM350t torpedo ladle cars) are demonstrated. The system for automated monitoring and diagnosing the technical conditions of torpedo ladle cars, without taking them out of service, has been developed and described.

Experimental Study Results Processing Method for the Marine Diesel Engines Vibration Activity Caused by the Cylinder-Piston Group Operations

“…The safe operation of transport fleet ships largely depends on the reliability of their main engines [37,38]. However, the technical means of monitoring the performance of marine diesel engines during their operation are currently not effective enough and need to be improved.…”

“…The vibroacoustic index and the concentration of wear products in lubricating oil are among the most informative diagnostic parameters of a marine diesel engine [37,38]. However, there are known difficulties in using the vibroacoustic indicator [39].…”