Iegorov O. Choice of optimal characteristics of river-sea integrated vessels and tug-barge combinations

Design of river-sea tug-barge combinations and integrated vessels (RS TBC and IV) is the object of research. The purpose of thesis research is development of method of optimal principal dimensions and characteristics of RS TBC and IV definition. On the basis of application of correctional-regression analysis methods and specially set up author's experiment mathematical model of engineering and navigation properties of RS TBC and IV is developed. Model makes connection between these properties and sought-for optimal principal dimensions and general characteristics of investigated objects. As a result of waterways structure analysis, weather operating conditions of vessels on these waterways and application of simulation method of deterministic water transport operations mathematical model of RS TBC and IV functioning which provides definition of their operation efficiency, generates trivial and functional restrictions of optimization task is developed. Optimization task, result of which is theoretical justification of RS TBC and IV optimal characteristics, is traced to finding of minimal payback period at different variations of block coefficient and real range of service speeds of RS TBC and IV. Program complex "Dnepro-max" which allows finding up of optimal values of principal dimensions and general characteristics is developed. The main operation models of RS TBC and IV "Dnepro-max" class are defined. Calculations for these models are executed. Results of research are implemented during design process of "Dnepro-max" class integrated vessels and in shipbuilding during these vessels construction.