Development of parameter-orientedmodels of bladed disks for static strength analysis

Abstract

In today's competitive production is important shortening time-processing products, which can be achieved using modern digital technology. Work is devoted in creating parametric finite element models of the compressor and the low-pressure turbine rotor wheels and a free turbine of modernized gas compressor unit NK-36ST using the package ANSYS Mechanical. The developed models of blades and disks allow to control grid of finite elements and the geometrical parameters of the structure in a wide range: the geometry of the blade, shapes and sizes for radius transition, shank geometry, dimensions of structural elements of the disc. The geometry of the airfoil blades is read from the file received as a result of gas-dynamic calculations. Models rotor wheels consider contacting a locking connection. Approach to the creation of the finite element mesh is to use structured and hybrid scheme that reduces the amount of grids and as a consequence, reduces the calculation time. The use of such models for the calculation of static strength under changing the geometric parameters of the gas-dynamic optimization when allowed to make them as soon as possible. With the help of the developed models in the future produced calibration calculations and confirmed reserves of strength.

About the authors

A. O. Shklovets

Samara State Aerospace University

Author for correspondence.
Email: ssau_shklovets@mail.ru

Associate research fellow of sectoral research laboratory "Vibration resistance and reliability of aeronautical products"

Russian Federation

A. V. Urlapkin

Samara State Aerospace University

Email: urlapkin@gmail.com

Engineer of sectoral research laboratory "Vibration resistance and reliability of aeronautical products"

Russian Federation

K. V. Boyarov

Samara State Aerospace University

Email: konst90@gmail.com

Engineer of sectoral research laboratory "Vibration resistance and reliability of aeronautical products"

Russian Federation

References

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  2. ANSYS Theory Manual, 12th edn., SAS IP Inc., 15-65-15-66 (1999).
  3. Birger I.A., Shorr B.F., Iosilevich G.B. Raschet na prochnost' detalei mashin: Spravochnik [Calculating the strength of machine parts. Handbook]. Moscow: Mashinostroenie Publ., 1993 640 p.

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