Analysis of design solutions for the icebreaker propulsion system with initial data defined by an infinite set of values

The practical application of methods for choosing the parameters of the propulsion system has a huge impact on the final operational characteristics of the vessel. Consequently, the result of such a choice should be the best design solutions. The existing methodologies are guided by practical experience in construction, using the characteristics of prototype ships, or suggest ways to reduce the source data area (main dimensions) to one or several options before starting to calculate the ship power complex parameters. As a result, when determining the parameters of the propulsion system of a vessel, the variability (for example, main dimensions) is lost, which can lead to the loss of the optimal ratio of operational characteristics. But in the case when the initial data are not determined by specific values, but represent a spread of values, the complexity of theoretical calculations arises, as well as using the experimental component. From here, in our opinion, it becomes necessary to create a methodology for analyzing design solutions for the vessel’s propulsion system with input data expressed not by final values, but by their infinite set. The presented method of analyzing the set of combinations of design solutions allows you to select the required set of parameters under the specified conditions and not be limited to rigid frameworks in the analysis (the choice of variables varies depending on the task).