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Information × Registration Number 0222U002517, 0121U107511 , R & D reports Title Development of a methodology for optimal design and manufacture highly efficient, highly reliable turbomachines, taking into account various operating modes popup.stage_title Head Avdieieva Olena P., Registration Date 13-02-2022 Organization National Technical University "Kharkiv Polytechnic Institute" popup.description2  The object of work is thermogasodynamic processes in the flow part of turbomachines, processes of deformation of elements of the flow part caused by thermogasodynamic processes and their mutual influence, as well as processes of processing and manufacturing elements of turbomachines, taking into account design and design limitations. The aim of the work is to develop a comprehensive methodology for optimal design and manufacture of high-performance, highly reliable turbomachines taking into account different modes of operation based on research of thermogasodynamic processes, multilevel computer modeling of mechanical behavior of structural elements used in turbomachines. . Research methods - theoretical aspects of research are based on the fundamental principles of the theory of gas dynamics and thermodynamics, systems theory, the theory of automated design, as well as the theory of cutting. Developed: one-dimensional model of the flow part of the steam turbine for a multistage turbine; coaxial and axisymmetric model of the flow part of a multistage axial turbine; complex mathematical model of the flow of the working fluid from the entrance to the SPR system to the capacitor. Detailed analytical and parametric finite element models for determining the stress state and natural frequencies and oscillations of the elements of the flow part of the steam turbine have been developed. Algorithm and software for calculation of rational technological parameters of processing of thin - walled elements of turbomachines taking into account their rigidity are developed. The response surfaces are determined in analytical form for the maximum stresses and natural oscillation frequencies for the steam turbine blade, which, in contrast to the existing ones, allows to carry out optimization studies with functional limitations. The relationship between the technological parameters of high-speed milling and surface quality indicators of thin-walled elements of turbomachines is establ Product Description popup.authors Ivanova Maryna S Avdieieva Olena P Basova Yevheniia V Vodka Oleksii O Kononenko Serhii M Larin Oleksii O Potopalska Kseniia Ye popup.nrat_date 2022-03-09 Close