T.G. Artyushina - Ph. D. (Eng.), Associate Professor, Department «Higher Mathematics», Plekhanov Russian University of Economics (Moscow). E-mail: t.g.art@yandex.ru

Initial stages of the vessel design are crucial because they account for 90% of the project success. However, the intellectual support is inadequate for this key stage. The reason is quite simple - traditional mathematics is mostly used for solving quantitative problems, whereas vessel design presents qualitative rather than quantitative problems. Hence the solution - fuzzy set logic is used as a mathematical model for describing the vessel as a system. Main subsystems of the vessel are described in detail in this article. Containership is an excellent example - it-s a common type of vessels on the one hand, there are many tried methodological solutions for designing its elements on the other hand. Verification of our model was performed for selected subsystem. Verification results of the model «Hull» are presented in the tabl. 1, verification results of the model «hydrodynamic complex» are presented in the tabl. 2. The verification gave positive results given the facts that load calculations were compared to the data of technical project, and power requirements were calculated using the analytical scheme without experimental data. Therefore, the new mathematical model, based on fuzzy set logic, gives a way to precisely describe the system «Vessel» with multiple criteria in the initial project design stages, thus increasing the chances of optimal product design.

 

1.  Artjushina T.G. Vybor matematicheskojj modeli dlja opisanija mnogourovnevojj, mnogocelevojj tekhnicheskojj sistemy tipa «Sudno» na nachalnykh stadijakh proektirovanija // Naukoemkie tekhnologii. 2015. № 5. T. 16. S. 5−10.