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Registration Number

0216U003103, 0115U002666 , R & D reports

Title

Numerical soluion of problems of aviation gasturbine engines compressor rims form optimization subject to aerodynamic and mechanical strength requirements

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Head

Melashych Sergiy Vasylyovych,

Registration Date

14-01-2016

Organization

The Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine

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Object of research - design and optimization of compressor blade rows of gas turbine engines. Purpose of research - development of scientific and methodological support for the numerical solution of optimization problems of blade channels geometrical parameters of aircraft gas turbine engines compressor rows to meet the requirements of aerodynamics and strength. Research methods - mathematical modeling methods with the assistance of mathematical physics main principles, computational gas dynamics, the dynamics of deformable systems and methods of nonlinear programming. Obtained results. The scientific and methodological support was developed, which allows solving together the problem of numerical simulation of spatial turbulent flows in compressor rows and the problem of compressor blades strength calculating. The main features of this support are the following: absence of the account of blade shape changing under the influence of the gas flow; application of solvers from OpenFOAM library for calculation of the flow field inside the blade channel and the stress-strain state of the blade; the interaction of solvers is implemented through data transfer in the boundary conditions. The previously developed method for finding extreme of several variables functions on the basis of genetic algorithm was expanded for the purpose of its application to the solution of multiextremal problems. Implemented method of objective functions scalarization according to the method of weighted sums and vector estimation method. The adaptation of the developed method was carried out for solving optimization problems of geometric parameters of compressor rows blade channel of aircraft gas turbine engines with a joint meeting of aerodynamics and strength requirements. Application field - aviation.

Product Description

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Мелашич Сергій Васильович

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2020-04-02