Usaty O. All-range multiparameter multicriteria optimization of the turbine flow path in the integrated information space

Thermogazodinamichesky processes in a flowing part steam and combustion turbines, thermal circuits GTU and its elements. Working out of universal methodology of the decision multiple parametre and multicriteria problems of optimum projection of the turbine flow of axial turbines taking into account maintenance conditions, and also constructive, technological both functional limitations and creation on its fundamentals of a complex of the application software. For definition of influence of geometrical parametres of the turbine flow on its operating characteristics methods of mathematical simulation of a current in of the turbine flow and its elements are used; numerical solutions of systems of the algebraic equations are carried out with a method of joint gradients of Fletcher-Rivsa. The Runge-Kutta method of the third order is applied to numerical integration of the differential equations. Optimum construction of the turbine flow was defined with use of methods of the theory of scheduling of experiment, cubic spline-interpolation, combinatorial algorithms, a method of a plenty of parts, and also dynamic programming methods. The designed methodology of optimum projection of the turbine flow of axial turbines taking into account possible and real modes of maintenance is realised as the ready software product which use allows to improve essentially indexes of efficiency of new turbine units, and also to spend modernising of the existing. The specified program complex is recommended for wide introduction at turbine factories, in design rooms and other architectures which are occupied by projection and modernising of a flowing part of axial turbines. For the first time the universal, object-oriented methodology of the recursive decision of multilevel, multicriteria and multiple parametre problems of optimum projection of a flowing part of axial turbines taking into account conditions of maintenance and constructive, technological and functional limitations is developed. For the first time it is put and, on the basis of the object-oriented approach, the multilevel problem of definition of optimum parametres of a flowing part of axial turbines recursively is solved. For the first time the mathematical model of a current of a working body in the axial turbine is developed. For the first time, according to requirements of international standard ISO 11179, the universal class of metadata is developed for the exposition of elements of the uniform integrated information field. Entity set models of plants of projection are created: a flowing part of the axial turbine, chambers of combustion, the axial compressor, a regenerator, gas-turbine installation etc. The basic results of researches are used in educational process of chair турбиностроения NTU "KhPI" in courses of lectures of "the Fundamentals of the theory of optimum projection of turbines" and "Variable conditions of steam turbines" for students and masters who study in directions "Energymachinebuilding" and "Thermophysics". Turbine building.