Determining the probability of failure of marine diesel engine parts

Maritime transportation is the essence of international economy. Today, about ninety percent world trade carried out by sea through 50,000 merchant ships. Most these vessels are powered mainline diesel engines due to their reliability and fuel efficiency. Reliability system elements in general depends on random failures, significant wear during operation, additional start-up. Accidental damage engine components a major hazard as some parts (such cylinder liners pistons) usually replaced repairs. On other hand, preventive service does not eliminate malfunctions. Therefore, problem assessing engine, there mathematical durability, taking into account only failures its elements, which greatest practical importance. The purpose work study cylinder-piston group main dry cargo Using systematic approach probabilistic statistical method, it was established that most common difficult case simultaneous action element (for example, sleeve) factors cause period operation (including start-up period) accidental failures. It determined quality ships "Ostriv Rosiyskiy" type higher than "Simferopol" "Murom" types. Empirical formulas for estimating probability emergency failure between factory repairs were obtained, where danger Based results study, possible establish schedule periodicity maintenance ship's cost losses ship downtime can also be used types engines. make determine and, particular, damages series