Kyrychenko Y. Scientific substantion of tube systems parameters for minerals hydrolifting.

The dissertation is devoted to development and substantiotion of complex approach under projection of tube airlift systems for minerals elevation from the World Ocean bottom and other ponds and to the selection of rational constructive, comsuptive and energetical parameters under hydroliftiny by means of complex simulation of mechanical and hydromechanical processess within airliftiny conduit loaded by internal and external liquid flows.It has been developed mathematical model which describes dynamical processess in elastically suspended multiple loaded airlifting concluit, taking into account influence of oscillating processess on the system dynamical streught under various force and kinematic parameters of excitation. With a help of developed model it was obtained the rules of dynamical internal loads forming in transport conduit of airlift which reflect force interaction of hydrodynamical and vibrating fields. On the base of obtained reletionships it was determined the rational, from the viewpoint of energy consumption, parameters of tube system which supplies its work ability and efficiency under difficult conditions of great depth.