Evaluation of the Risk in Production Systems with a Parallel Reliability Structure Taking into Account Its Acceptance Level

Proposed in literature quantitative methods of risk analysis and evaluation treat single issues, assuming certain factors and conditions as well as impose constraints. Hence in order to asses risk of production process in its real environment, the problem should be simplified and adjust to a certain method. Taking into consideration the complexity of modern production systems as well as a number of influencing them external, random factors, this kind of approach seems to be unsuitable. This paper presents a method of determining the risk for a production system and a coefficient of changes' risk.